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natural [ 'nætʃərəl] a.自然界的;天然的

natural ['nætʃərəl] a.自然的, 天生的

受灾群众 people afflicted by a natural disaster

天赋人权 natural rights

西气东输 transmit the natural gas from the western areas to East China; West-East natural gas transmission project

自然保护区 natural reserve; nature preservation zone

自然耗损 natural wearing

自然资源保护区 natural resource protection areas

Natural clear lacquer 清漆

Natural feeling of warmth and texture 质感温暖自然

natural (sign) 本位号

Compressed Natural Gas (CNG) Vehicular Fuel Systems Code

Liquefied Natural Gas (LNG) Vehicular Fuel Systems Code

Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG)

Natural Antioxidant 天然抗氧化剂

Natural Button 天然材料钮扣

Natural Pigment 天然色素

risk of normal loss (natural loss)? 途耗或自然损耗险

国家自然科学奖 National Prize for Natural Sciences

natural disaster 自然灾害

natural fabric 天然纤维

natural products 天然产品

男女婴每年出生自然比率 natural ratio of males to females born each year

natural ratio of males to females born each year 男女婴每年出生自然比率

There is much discussion over science and technology. One of the questions under debate is whether traditional technology and methods are bound to die out when a country begins to develop modern science and technology.
关于科学技术存在许多争论,其中一个问题是当国家发展现代科学技术时,传统的技术方法是否可能会消亡? 130. As for me, the declining of traditional technology and methods is not a bad thing; it is the natural result of progress of society.

环境与资源保护法学 Science of Environment and Natural Resources Protection Law

理学 Natural Science

石油与天然气工程 Oil and Natural Gas Engineering

国际保护自然资源联盟 International Union for Conservation of Nature and Natural Resources (IUCN)

natural monopoly 自然垄断

Natural 自然的,天然的

natural calamities 自然灾害

natural capital 自然资本

natural economy 自然经济

natural resources 自然资源

tax on natural resources 资源税

measurement of natural frequency and damping raito of suspension

natural circulation type cooling system

natural air cooling

natural gas vehicle(NGV)

compressed natural gas vehicle

natural noise

She's a natural crier.

In truth, politeness is artificial good humor, it covers the natural want of it, and ends by rendering habitual a substitute nearly equivalent to the real virtue.

The survival of the fittest, which I have here sought to express in mechanical terms, is that which Mr. Darwin has called 'natural selection', or the preservation of favoured races in the struggle for life.

Regrets are the natural property of grey hairs.

Essentially, the research of Natural Language Understanding should be independent of any specific language.

The Authors doubt that any breakthrough can be made in the research of Chinese Understanding without the grasp of Natural Language Understanding as a whole.

Native Chinese researchers, however, have the responsibility and also the advantage to explore the general rules of Natural Language Understanding from the very perspective of Chinese Understanding.

For Chinese understanding, it is natural to put content words in the first place, but the meaning of functional words in sentences, dialogues and texts cannot be overlooked, either.

Food is being sent to the victims of the natural terrible event.

Some natural matter can glow in the dark.

This is a natural opening for a narrative.

Visitors to the natural park are told to stay away from wild animals.

Bob has a natural capacity for chemistry.

Storm is a natural disaster.

There are many different kinds of natural remedies to help overcome iron deficiency.

Amid peace and comfort, you can enjoy healthy and delicious food, natural therapies and treatments, and suitable physical exercise in our sanatorium.

My country is rich in natural resources.

Events took their natural course.

This harbor is a natural harbor.

It's quite natural that you should succeed.

I prefer to see animals living in their natural state.

She has a natural wave in her hair.

It's natural for me to get angry. *It's natural for...to “当然(自然)会”。
Why shouldn't I be angry?
I have a right to be upset!
My reaction is completely appropriate. (我这样的反应是自然的。) *appropriate “与目的、条件等相称的,适合的,恰当的”。

She‘s a natural crier.

Dying is as natural as living.

risk of normal loss (natural loss)? 途耗或自然损耗险

A You’re right. Beijing needs more metros and buses.
A 你说得对。北京需要更多的地铁和公共汽车。
B They are building new metro lines for the Olympics.
B 为迎接奥运会北京正在修建新的地铁线路。
A Beijing needs them! Every time I come to Beijing there seems to be more traffic.
A 北京太需要这个了!每次我来北京都觉得好像车又比以前多了。
B I know, but things will get better. There will be new buses too.
B 我知道,但是情况会好转的。北京还将有新的公共汽车。
A That’s good. I guess it’s just natural. As a city grows, it gets more traffic.
A 那好啊。我想这是自然的。当一个城市在发展时,它的车辆也会增多。
B Yes. But it would be good to have a better transport system and less car pollution.
B 是的。但是如果交通系统更发达而汽车污染更少就好了。

Words may be false and full of arts ,sighs are the natural language of the heart.
Thomas Shadwell, British dramatist

Histories make men wise; poems witty; the mathematics subtle; natural philosophy deep; moral grave; logic and rhetoric able to contend.
Francis Bacon, British Philosopher

Naturl abilities are like natural plants that need pruning by study.
Francis Bacon, British philoslpher

Every soil where he is well, is to a valiand man his natural country.
Masinger Phililp, British dramatist

Let early education be a sort of a musement; you will then be bette able to find out the natural bent.
Plato, ancient Greek Philosophe 

@@@ 选择
candidate for ...的候选人
natural selection 自然选择
pick out 精心挑选
prefer to 1.宁愿..., 更喜爱
2.喜爱A甚于B; 选择A而不选择B
run for 竞选
sift through 筛选; 详查; 细查
sign up for 报名, 注册; 选课
single out 挑出, 选出
try out for (为获得球队或演出的一个角色职位等)参加选拔
vote in 投票选出

@@@ 生命, 生育
all one's life 一生, 一辈子
at birth 刚出生
baby boom 生育高峰时期
be born of 源于; 出生于
be born to 天生注定
bring forth 引起, 使产生; 生(孩子)
bring through 救活(病人)
bring up 1.养育; 教育
come from 开始于...; 起源于...; 出生于...
come through 熬过(困难、危险等)而活下来
fatal to 对...是致命的
give birth to 1.生(孩子)
2.使诞生, 引起
make sketches 写生, 素描
native to 固有的, 土生土长的
natural balance 生态平衡
reproductive capability 生殖能力
reproductive organ 生殖器官
spring up 突然出现; 迅速生长

@@@ 平衡
keep one's balance 保持(身体)平衡
make ends meet 收支平衡
natural balance 生态平衡

@@@ 自由
at liberty (to do sth.) 自由地, 随意
ill at ease 拘束; 不自在; 局促不安
natural selection 自然选择
set free 释放, 使获得自由

本能的 natural; involantary; unconditioned; instinctive

本位音 natural

备荒 [bèi huāng] /prepare against natural disasters/

本色 [běn sè] /inherent qualities/natural qualities/distinctive character/true qualities/

本色 [běn shǎi] /natural color/

本性 [běn xìng] /natural instincts/nature/inherent quality/

禀 [bǐng] /natural property or endowment/report to (a superior)/

禀赋 [bǐng fù] /natural endowment/gift/

秉性 [bǐng xìng] /(n) natural disposition, natural attitude/

禀性 [bǐng xìng] /natural disposition/

博物 [bó wù] /natural science/

当然 [dāng rán] /only natural/as it should be/certainly/of course/without doubt/

风光 [fēng guāng] /(n) natural scenic view/

开采 [kāi cǎi] /(v) extract ore or some other natural resource from a mine/

淘汰 [táo tài] /to die out/to eliminate (in a competition)/natural selection/

天然 [tiān rán] /natural/

天然气 [tiān rán qì] /natural gas/

天生 [tiān shēng] /(adj) innate; natural/

灾荒 [zāi huāng] /(n) natural disaster; famine/

资源 [zī yuán] /(natural) resources/

自然 [zì rán] /nature/natural/naturally/

自然界 [zì rán jiè] /nature/the natural world/

自然科学 [zì rán kē xué] /natural sciences/

自然科学基金会 [zì rán kē xué jī jīn huì] /natural science fund/

If you feel awkward being humorous, you must practice so that it becomes more natural.
Include a few casual and apparently off-the-cuff remarks which you can deliver in a relaxed and unforced manner.
Often it's the delivery which causes the audience to smile, so speak slowly and remember that a raised eyebrow or an unbelieving look may help to show that you are making a light-hearted remark.

Being a man has always been dangerous.
There are about 105 males born for every 100 females, but this ratio drops to near balance at the age of maturity, and among 70-year-olds there are twice as many women as men.
But the great universal of male mortality is being changed.
Now, by babies survive almost as well as girls do.
This means that, for the first time, there will be an excess of boys in those crucial years when the are searching for a mate.
More important, another chance for natural selection has been removed.

Nowadays the number of births, like the age of death, has become average.
Most of us have roughly the same number of offspring.
Again, differences between people and the opportunity for natural selection to take advantage of it have diminished.

The grand mediocrity of today — everyone being the same in survival and number of offspring — means that natural selection has lost 80% of its power in upper-middle-class India compared to the tribes.

Economists have been particularly surprised by favourable inflation figures in Britain and the United States, since conventional measures suggest that both economies, and especially America's, have little productive slack. America's capacity utilisation, for example, hit historically high levels earlier this year, and its jobless rate (5.6% in August) has fallen below most estimates of the natural rate of unemployment — the rate below which inflation has taken off on the past.

Yet, dramatic instances of sudden forgetting can be seen to be adaptive.
In this sense, the ability to forget can be interpreted to have survived through a process of natural selection in animals.
Indeed, when one's memory of emotionally painful experience lead to serious anxiety, forgetting may produce relief.

Nevertheless, an evolutionary interpretation might make it difficult to understand how the commonly gradual process of forgetting survived natural selection.

The important factor in a private-enterprise economy is that individuals are allowed to own productive resources (private property), and they are permitted to hire labor gain control over natural resources, and produce goods and services for sale at a profit.

{adj: Siberian} of or relating to or characteristic of Siberia or the Siberians
"Siberian natural resources"
"Siberian coal miners"
"the Siberian tundra"

{adj: artificial, unreal} contrived by art rather than nature
"artificial flowers"
"artificial flavoring"
"an artificial diamond"
"artificial fibers"
"artificial sweeteners"
<-> natural

{adj: artificial} not arising from natural growth or characterized by vital processes

{adj: artless} simple and natural; without cunning or deceit
"an artless manner"
"artless elegance"
<-> artful

{adj: au jus} served in its natural juices or gravy
"roast beef au jus"

{adj: bald, denuded, denudate} without the natural or usual covering
"a bald spot on the lawn"
"bare hills"

{adj: bare} lacking its natural or customary covering
"a bare hill"
"bare feet"
<-> covered

{adj: bleached, colored, coloured, dyed} (used of color) artificially produced; not natural
"a bleached blonde"

{adj: bluff} bluntly direct and outspoken but good-natured
"a bluff but pleasant manner"
"a bluff and rugged natural leader"

{adj: bright} having lots of light either natural or artificial
"the room was bright and airy"
"a stage bright with spotlights"

{adj: candid} informal or natural; especially caught off guard or unprepared
"a candid photograph"
"a candid interview"

{adj: clairvoyant} perceiving things beyond the natural range of the senses

{adj: clean-burning} leaving little contamination while consuming fuel
"natural gas is a clean-burning fuel"

{adj: constrained, forced, strained} lacking spontaneity; not natural
"a constrained smile"
"forced heartiness"
"a strained smile"

{adj: conventionalized, conventionalised, stylized, stylised} using artistic forms and conventions to create effects; not natural or spontaneous
"a stylized mode of theater production"

{adj: cultivated} no longer in the natural state; developed by human care and for human use
"cultivated roses"
"cultivated blackberries"

{adj: denatured, denaturized, denaturised} changed in nature or natural quality
"denatured alcohol"

{adj: disjunct} used of distributions, as of statistical or natural populations
"disjunct distribution of king crabs"

{adj: dried, dehydrated, desiccated} preserved by removing natural moisture
"dried beef"
"dried fruit"
"dehydrated eggs"
"shredded and desiccated coconut meat"

{adj: dry} free from liquid or moisture; lacking natural or normal moisture or depleted of water; or no longer wet
"dry land"
"dry clothes"
"a dry climate"
"dry splintery boards"
"a dry river bed"
"the paint is dry"
<-> wet

{adj: echoic, imitative, onomatopoeic, onomatopoeical, onomatopoetic} (of words) formed in imitation of a natural sound
"onomatopoeic words are imitative of noises"
"it was independently developed in more than one place as an onomatopoetic term"- Harry Hoijer
<-> nonechoic

{adj: equitable, just} implying justice dictated by reason, conscience, and a natural sense of what is fair to all
"equitable treatment of all citizens"
"an equitable distribution of gifts among the children"
<-> inequitable

{adj: factitious} not produced by natural forces
"brokers created a factitious demand for stocks"

{adj: flat} lowered in pitch by one chromatic semitone
"B flat"
<-> natural, sharp

{adj: free-and-easy, casual} natural and unstudied
"using their Christian names in a casual way"
"lectured in a free-and-easy style"

{adj: impulsive, unprompted} proceeding from natural feeling or impulse without external stimulus
"an impulsive gesture of affection"

{adj: incurious} showing absence of intellectual inquisitiveness or natural curiosity
"strangely incurious about the cause of the political upheaval surrounding them"
<-> curious

{adj: intuitive} spontaneously derived from or prompted by a natural tendency
"an intuitive revulsion"

{adj: labored, laboured, strained} lacking natural ease
"a labored style of debating"

{adj: lawful, orderly, rule-governed} according to custom or rule or natural law

{adj: lifelike, natural} free from artificiality
"a lifelike pose"
"a natural reaction"

{adj: living} (used of minerals or stone) in its natural state and place; not mined or quarried
"carved into the living stone";

{adj: man-made, semisynthetic, synthetic} not of natural origin; prepared or made artificially
"man-made fibers"
"synthetic leather"

{adj: matter-of-course} expected or depended upon as a natural or logical outcome

{adj: mature} having reached full natural growth or development
"a mature cell"
<-> immature

{adj: natural, born, innate} being talented through inherited qualities
"a natural leader"
"a born musician"
"an innate talent"

{adj: natural, instinctive} unthinking; prompted by (or as if by) instinct
"a cat's natural aversion to water"
"offering to help was as instinctive as breathing"

{adj: natural, raw, rude} (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes
"natural yogurt"
"natural produce"
"raw wool"
"raw sugar"
"bales of rude cotton"

{adj: natural} (of a key) containing no sharps or flats; (of a note) being neither raised nor lowered by one chromatic semitone
"a natural scale"
"B natural"
<-> sharp, flat

{adj: natural} existing in or in conformity with nature or the observable world; neither supernatural nor magical
"a perfectly natural explanation"
<-> supernatural

{adj: natural} existing in or produced by nature; not artificial or imitation
"a natural pearl"
"natural gas"
"natural silk"
"natural blonde hair"
"a natural sweetener"
"natural fertilizers"
<-> artificial

{adj: natural} functioning or occurring in a normal way; lacking abnormalities or deficiencies
"it's the natural thing to happen"
"natural immunity"
"a grandparent's natural affection for a grandchild"

{adj: natural} in accordance with nature; relating to or concerning nature
"a very natural development"
"our natural environment"
"natural science"
"natural resources"
"natural cliffs"
"natural phenomena"
<-> unnatural

{adj: natural} related by blood; not adopted
"natural parent"

{adj: nonsynthetic} involving or derived from living organisms; free from chemical treatments or additives
"organic gardening is more natural"
"nonsynthetic fertilizer"

{adj: odoriferous, odorous, perfumed, scented, sweet, sweet-scented, sweet-smelling} having a natural fragrance
"odoriferous spices"
"the odorous air of the orchard"
"the perfumed air of June"
"scented flowers"

{adj: open} without undue constriction as from e.g. tenseness or inhibition
"the clarity and resonance of an open tone"
"her natural and open response"

{adj: physical} according with material things or natural laws (other than those peculiar to living matter)
"a reflex response to physical stimuli"

{adj: processed} prepared or converted from a natural state by subjecting to a special process
"processed ores"
<-> unprocessed

{adj: resourceless} lacking or deficient in natural resources

{adj: rich} having an abundant supply of desirable qualities or substances (especially natural resources)
"blessed with a land rich in minerals"
"rich in ideas"
"rich with cultural interest"
<-> poor

{adj: scenic} used of locations; having beautiful natural scenery
"scenic drives"

{adj: self-seeded, self-sown, self-sowed} growing from seed dispersed by natural agency such as wind or birds

{adj: sharp} raised in pitch by one chromatic semitone
"C sharp"
<-> flat, natural

{adj: supernatural} not existing in nature or subject to explanation according to natural laws; not physical or material
"supernatural forces and occurrences and beings"
<-> natural

{adj: synthetic} not genuine or natural
"counterfeit rhetoric that flourishes when passions are synthetic"- George Will

{adj: tenor} of or close in range to the highest natural adult male voice
"tenor voice"

{adj: tonsured} having a bald spot either shaved or natural
"tonsured monks"

{adj: umber} of the color of any of various natural brown earth pigments

{adj: uncapped} used especially of front teeth
"natural uncapped teeth"

{adj: underivative} not derivative or imitative
"a natural underivative poet"

{adj: unexploited, undeveloped} undeveloped or unused
"vast unexploited (or undeveloped) natural resources"
<-> exploited

{adj: unimproved} (of land) not cleared of trees and brush; in the wild or natural state
"a farm with 50 acres of unimproved and 68 acres of improved land"
"unimproved woodlands"

{adj: unmannered} without artificiality; natural
"the doctor's quiet unmannered entry"

{adj: unnatural} not in accordance with or determined by nature; contrary to nature
"an unnatural death"
"the child's unnatural interest in death"
<-> natural

{adj: unprocessed} not altered from an original or natural state
"unprocessed commodities"
<-> processed

{adj: unseen} not seen or perceived
"unseen natural resources"

{adj: violent} effected by force or injury rather than natural causes
"a violent death"

{adj: wild, untamed} in a natural state; not tamed or domesticated or cultivated
"wild geese"
"edible wild plants"
<-> tame

{adv: artificially, unnaturally, by artificial means} not according to nature; not by natural means
"artificially induced conditions"
<-> naturally

{adv: in situ, in place} in the original or natural place or site
"carcinoma in situ"
"the archeologists left the pottery in place"

{adv: meagerly, sparingly, slenderly, meagrely} to a meager degree or in a meager manner
"these voices are meagerly represented at the conference"
"the area is slenderly endowed with natural resources"
<-> amply

{adv: naturally} according to nature; by natural means; without artificial help
"naturally grown flowers"
<-> artificially

{adv: naturally} in a natural or normal manner
"speak naturally and easily"
<-> unnaturally

{adv: thence, therefrom, thereof} from that circumstance or source
"atomic formulas and all compounds thence constructible"- W.V.Quine
"a natural conclusion follows thence"
"public interest and a policy deriving therefrom"
"typhus fever results therefrom"

{n: Alberta} one of the three prairie provinces in western Canada; rich in oil and natural gas and minerals

{n: Aristotelianism} (philosophy) the philosophy of Aristotle that deals with logic and metaphysics and ethics and poetics and politics and natural science
"Aristotelianism profoundly influenced Western thought"

{n: Asian longhorned beetle, Anoplophora glabripennis} a beetle from China that has been found in the United States and is a threat to hardwood trees; lives inside the tree; no natural predators in the United States

{n: Bradley method of childbirth, Bradley method} a method that prepares a mother for natural childbirth by providing education and exercises and nutrition and techniques of breathing and relaxation (with the assistance of the father)

{n: Bremerhaven} a port city in northwestern Germany at the mouth of the Weser River on the North Sea; has a deep natural harbor and is an important shipping center

{n: Cycadopsida, class Cycadopsida, Cycadophytina, subdivision Cycadophytina, Cycadophyta, subdivision Cycadophyta} palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta)

{n: Darwin, Charles Darwin, Charles Robert Darwin} English natural scientist who formulated a theory of evolution by natural selection (1809-1882)

{n: Darwinism} a theory of organic evolution claiming that new species arise and are perpetuated by natural selection

{n: Department of the Interior, Interior Department, Interior, DoI} the United States federal department charged with conservation and the development of natural resources; created in 1849

{n: Lamaze method of childbirth, Lamaze method} a method that prepares a mother for natural childbirth; the pregnant woman (in classes and at home) practices (usually with the help of a coach) learns about the physiology of childbirth and techniques of relaxation and concentration and breathing

{n: Moon} the natural satellite of the Earth
"the average distance to the moon is 384,400 kilometers"
"men first stepped on the moon in 1969"

{n: Mumbai, Bombay} a city in western India just off the coast of the Arabian Sea; India's 2nd largest city (after Calcutta); has the only natural deep-water harbor in western India

{n: National Oceanic and Atmospheric Administration, NOAA} an agency in the Department of Commerce that maps the oceans and conserves their living resources; predicts changes to the earth's environment; provides weather reports and forecasts floods and hurricanes and other natural disasters related to weather

{n: National Trust, NT} an organization concerned to preserve historic monuments and buildings and places of historical interest or natural beauty; founded in 1895 and supported by endowment and private subscription

{n: Perciformes, order Perciformes, Percomorphi, order Percomorphi} one of the largest natural groups of fishes of both marine and fresh water: true perches; basses; tuna

{n: Pliny, Pliny the Elder, Gaius Plinius Secundus} Roman author of an encyclopedic natural history; died while observing the eruption of Vesuvius (23-79)

{n: Portland} freshwater port and largest city in Oregon; located in northwestern Oregon on the Willamette River which divides the city into east and west sections; renowned for its beautiful natural setting among the mountains

{n: Prolog, logic programing, logic programming} a computer language designed in Europe to support natural language processing

{n: Read method of childbirth, Read method} a method of natural childbirth that assumes it is a normal process and that the pain is largely psychological; involves education and breathing exercises to foster relaxation and other exercises

{n: Reykjavik, capital of Iceland} the capital and chief port of Iceland on the southwestern coast of Iceland; buildings are heated by natural hot water

{n: Rousseau, Jean-Jacques Rousseau} French philosopher and writer born in Switzerland; believed that the natural goodness of man was warped by society; ideas influenced the French Revolution (1712-1778)

{n: Royal Society, Royal Society of London for Improving Natural Knowledge} an honorary English society (formalized in 1660 and given a royal charter by Charles II in 1662) through which the British government has supported science

{n: Spencer, Herbert Spencer} English philosopher and sociologist who applied the theory of natural selection to human societies (1820-1903)

{n: Taoism, Daoism} philosophical system developed by of Lao-tzu and Chuang-tzu advocating a simple honest life and noninterference with the course of natural events

{n: absorbent cotton} cotton made absorbent by removal of the natural wax

{n: accidental} a musical notation that makes a note sharp or flat or natural although that is not part of the key signature

{n: accretion, accumulation} an increase by natural growth or addition

{n: act of God, force majeure, vis major, inevitable accident, unavoidable casualty} a natural and unavoidable catastrophe that interrupts the expected course of events
"he discovered that his house was not insured against acts of God"

{n: adoption} a legal proceeding that creates a parent-child relation between persons not related by blood; the adopted child is entitled to all privileges belonging to a natural child of the adoptive parents (including the right to inherit)

{n: affinity, kinship} a close connection marked by community of interests or similarity in nature or character
"found a natural affinity with the immigrants"
"felt a deep kinship with the other students"
"anthropology's kinship with the humanities"

{n: affinity} a natural attraction or feeling of kinship
"an affinity for politics"
"the mysterious affinity between them"
"James's affinity with Sam"

{n: aggressiveness, belligerence, pugnacity} a natural disposition to be hostile

{n: alkaloid} natural bases containing nitrogen found in plants

{n: alpha particle} a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes

{n: alternative birth, alternative birthing} a method of childbirth that avoids intrusive high-tech medicine in favor of more natural and homely settings

{n: alternative energy} energy derived from sources that do not use up natural resources or harm the environment

{n: anastomosis, inosculation} a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous

{n: animatism} the attribution of consciousness and personality to natural phenomena such as thunderstorms and earthquakes and to objects such as plants and stones

{n: animism} the doctrine that all natural objects and the universe itself have souls
"animism is common among primitive peoples"

{n: anthracite, anthracite coal, hard coal} a hard natural coal that burns slowly and gives intense heat

{n: antrum} a natural cavity or hollow in a bone

{n: apatetic coloration} coloring serving as natural camouflage

{n: aperture} a natural opening in something

{n: aphakia} absence of the natural lens of the eye (usually resulting from the removal of cataracts)

{n: aphakic} someone afflicted by aphakia; someone lacking the natural lenses of the eyes

{n: apophysis} (anatomy) a natural outgrowth or projection on an organ or body part such as the process of a vertebra

{n: apophysis} (botany) a natural swelling or enlargement: at the base of the stalk or seta in certain mosses or on the cone scale of certain conifers

{n: art nouveau} a French school of art and architecture popular in the 1890s; characterized by stylized natural forms and sinuous outlines of such objects as leaves and vines and flowers

{n: artifact, artefact} a man-made object taken as a whole
<-> natural object

{n: artificial heart} a pump that replaces the natural heart

{n: artificial joint} a metal or plastic part that is surgically implanted to replace a natural joint (possibly elbow or wrist but usually hip or knee)

{n: artificial language} a language that is deliberately created for a specific purpose
<-> natural language

{n: asphalt, mineral pitch} a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons

{n: astrodynamics} the branch of astronomy that studies the motion of natural and artificial bodies in space

{n: bank gravel, pit-run gravel, pit run} gravel as found in natural deposits

{n: basal body temperature method of family planning, basal body temperature method} natural family planning in which the fertile period of the woman's menstrual cycle is inferred by noting the rise in basal body temperature that typically occurs with ovulation

{n: basin} a natural depression in the surface of the land often with a lake at the bottom of it
"the basin of the Great Salt Lake"

{n: beehive, hive} a structure that provides a natural habitation for bees; as in a hollow tree

{n: bellicosity, bellicoseness} a natural disposition to fight

{n: benign prostatic hyperplasia, BPH} enlarged prostate; appears to be part of the natural aging process

{n: biodegradable pollution} pollution that is rendered harmless by natural processes and so causes no permanent harm
<-> nonbiodegradable pollution

{n: biomedical science} the application of the principles of the natural sciences to medicine

{n: bird watcher, birder} a person who identifies and studies birds in their natural habitats

{n: body, dead body} a natural object consisting of a dead animal or person
"they found the body in the lake"

{n: branch water} pure natural water from a stream or brook; often distinguished from soda water

{n: bristle} a stiff fiber (coarse hair or filament); natural or synthetic

{n: brook, creek} a natural stream of water smaller than a river (and often a tributary of a river)
"the creek dried up every summer"

{n: butane} occurs in natural gas; used in the manufacture of rubber and fuels

{n: cataract} clouding of the natural lens of the eye

{n: cavity, bodily cavity, cavum} (anatomy) a natural hollow or sinus within the body

{n: celestial body, heavenly body} natural objects visible in the sky

{n: chamber} a natural or artificial enclosed space

{n: chemical phenomenon} any natural phenomenon involving chemistry (as changes to atoms or molecules)

{n: chemistry, chemical science} the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

{n: computational linguist} someone trained in computer science and linguistics who uses computers for natural language processing

{n: conservation} the preservation and careful management of the environment and of natural resources

{n: coroner, medical examiner} a public official who investigates by inquest any death not due to natural causes

{n: covering, natural covering, cover} a natural object that covers or envelops
"under a covering of dust"
"the fox was flushed from its cover"

{n: crepe rubber} crude natural rubber; used mainly for shoe soles

{n: cultivar} a variety of a plant developed from a natural species and maintained under cultivation

{n: current, stream} a steady flow (usually from natural causes)
"the raft floated downstream on the current"
"he felt a stream of air"

{n: death toll} the number of deaths resulting from some particular cause such as an accident or a battle or a natural disaster

{n: dehiscence} (biology) release of material by splitting open of an organ or tissue; the natural bursting open at maturity of a fruit or other reproductive body to release seeds or spores or the bursting open of a surgically closed wound

{n: dental implant} an implant that replaces a natural tooth

{n: deposition, deposit} the natural process of laying down a deposit of something

{n: dimple} a small natural hollow in the cheek or chin
"His dimple appeared whenever he smiled"

{n: disambiguator} (computer science) a natural language processing application that tries to determine the intended meaning of a word or phrase by examining the linguistic context in which it is used

{n: discoloration, discolouration} the act of changing the natural color of something by making it duller or dingier or unnatural or faded

{n: displacement, deracination} to move something from its natural environment

{n: disposition} a natural or acquired habit or characteristic tendency in a person or thing
"a swelling with a disposition to rupture"

{n: ditch} any small natural waterway

{n: easiness} the quality of being easy in behavior or style
"there was an easiness between them"
"a natural easiness of manner"

{n: enclosure, natural enclosure} a naturally enclosed space

{n: endowment, gift, talent, natural endowment} natural abilities or qualities

{n: envelope} a natural covering (as by a fluid)
"the spacecraft detected an envelope of gas around the comet"

{n: essence} any substance possessing to a high degree the predominant properties of a plant or drug or other natural product from which it is extracted

{n: ethologist} a zoologist who studies the behavior of animals in their natural habitats

{n: ethology} the branch of zoology that studies the behavior of animals in their natural habitats

{n: ethylene, ethene} a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic

{n: extraterrestrial object, estraterrestrial body} a natural object existing outside the earth and outside the earth's atmosphere

{n: e} the base of the natural system of logarithms; approximately equal to 2.718282...

{n: fabric, cloth, material, textile} artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
"the fabric in the curtains was light and semitransparent"
"woven cloth originated in Mesopotamia around 5000 BC"
"she measured off enough material for a dress"

{n: facility, readiness} a natural effortlessness
"they conversed with great facility"
"a happy readiness of conversation"--Jane Austen

{n: fibril, filament, strand} a very slender natural or synthetic fiber

{n: field guide} a guidebook describing natural objects of some type that might be encountered in the field
"a field guide to mushrooms"

{n: flair, genius} a natural talent
"he has a flair for mathematics"
"he has a genius for interior decorating"

{n: flavin} a ketone that forms the nucleus of certain natural yellow pigments like riboflavin

{n: follow-through} the act of carrying a stroke to its natural completion
"his follow-through was straight down the line toward the target"
"squash can be dangerous if your opponent has a long follow-through"

{n: foramen, hiatus} a natural opening or perforation through a bone or a membranous structure

{n: formation} natural process that causes something to form
"the formation of gas in the intestine"
"the formation of crystals"
"the formation of pseudopods"

{n: foster-parent, foster parent} a person who acts as parent and guardian for a child in place of the child's natural parents but without legally adopting the child

{n: freemasonry} a natural or instinctive fellowship between people of similar interests
"he enjoyed the freemasonry of the Press"

{n: gas engine} an internal-combustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor

{n: gas heat} heating system that burns natural gas

{n: gas line} a pipeline used to transport natural gas
"the workmen broke through the gas line"

{n: gas system} facility (plant and equipment) for providing natural-gas service

{n: gas well} a well that yields or has yielded natural gas

{n: gasfield} a region where there is natural gas underground

{n: genitor} a natural father or mother

{n: geological phenomenon} a natural phenomenon involving the structure or composition of the earth

{n: geological process, geologic process} (geology) a natural process whereby geological features are modified

{n: groove, channel} a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)

{n: gusher} an oil well with a strong natural flow so that pumping is not necessary

{n: hairline} the natural margin formed by hair on the head

{n: happening, occurrence, occurrent, natural event} an event that happens

{n: hard rubber, vulcanite, ebonite} a hard nonresilient rubber formed by vulcanizing natural rubber

{n: healing} the natural process by which the body repairs itself

{n: health food} any natural or prepared food popularly believed to promote good health

{n: heart valve} an implant that replaces a natural cardiac valve

{n: helium, He, atomic number 2} a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)

{n: hot spring, thermal spring} a natural spring of water at a temperature of 70 F or above

{n: hypothesis, possibility, theory} a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
"a scientific hypothesis that survives experimental testing becomes a scientific theory"
"he proposed a fresh theory of alkalis that later was accepted in chemical practices"

{n: incapacity} lack of physical or natural qualifications
<-> capacity

{n: integer, whole number} any of the natural numbers (positive or negative) or zero

{n: intraocular lens} an artificial lens that is implanted into the eye of someone to replace a damaged natural lens or someone who has had a cataract removed

{n: iridium, Ir, atomic number 77} a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium

{n: jus sanguinis} the principle that a person's nationality at birth is the same as that of his natural parents

{n: kingdom} a basic group of natural objects

{n: knoll, mound, hillock, hummock, hammock} a small natural hill

{n: lacquer} a black resinous substance obtained from certain trees and used as a natural varnish

{n: land resources} natural resources in the form or arable land

{n: landscape, landscape painting} a genre of art dealing with the depiction of natural scenery

{n: landscape} painting depicting an expanse of natural scenery

{n: language unit, linguistic unit} one of the natural units into which linguistic messages can be analyzed

{n: lauric acid, dodecanoic acid} a crystalline fatty acid occurring as glycerides in natural fats and oils (especially coconut oil and palm-kernel oil)

{n: law, natural law} a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society

{n: lens implant} a clear plastic lens that is implanted in the eye; usually done when the natural lens has been removed in a cataract operation

{n: life science, bioscience} any of the branches of natural science dealing with the structure and behavior of living organisms

{n: man-made fiber, synthetic fiber} created from natural materials or by chemical processes

{n: meatus} a natural body passageway

{n: mechanism} a natural object resembling a machine in structure or function
"the mechanism of the ear"
"the mechanism of infection"

{n: metamorphism} change in the structure of rock by natural agencies such as pressure or heat of introduction of new chemical substances

{n: methanogen} archaebacteria found in anaerobic environments such as animal intestinal tracts or sediments or sewage and capable of producing methane; a source of natural gas

{n: mimicry} the resemblance of an animal species to another species or to natural objects; provides concealment and protection from predators

{n: mineral resources} natural resources in the form of minerals

{n: moon} any natural satellite of a planet
"Jupiter has sixteen moons"

{n: movement, motion} a natural event that involves a change in the position or location of something

{n: multiplication} a multiplicative increase
"repeated copying leads to a multiplication of errors"
"this multiplication of cells is a natural correlate of growth"

{n: nankeen} a durable fabric formerly loomed by hand in China from natural cotton having a yellowish color

{n: national monument} memorial consisting of a structure or natural landmark of historic interest; set aside by national government for preservation and public enjoyment

{n: natural ability} ability that is inherited

{n: natural childbirth} labor and childbirth without medical intervention; no drugs are given to relieve pain or aid the birth process
"natural childbirth is considered the safest for the baby"

{n: natural depression, depression} a sunken or depressed geological formation
<-> natural elevation

{n: natural elevation, elevation} a raised or elevated geological formation
<-> natural depression

{n: natural family planning} any of several methods of family planning that do not involve sterilization or contraceptive devices or drugs; coitus is avoided during the fertile time of a woman's menstrual cycle

{n: natural fiber, natural fibre} derived from plants or animals

{n: natural gas, gas} a fossil fuel in the gaseous state; used for cooking and heating homes

{n: natural glass} magma of any composition that cooled very rapidly

{n: natural history} the scientific study of plants or animals (more observational than experimental) usually published in popular magazines rather than in academic journals

{n: natural immunity, innate immunity} immunity to disease that occurs as part of an individual's natural biologic makeup

{n: natural language processing, NLP, human language technology} the branch of information science that deals with natural language information

{n: natural language processor, natural language processing application} an application program that deals with natural language text

{n: natural language, tongue} a human written or spoken language used by a community; opposed to e.g. a computer language
<-> artificial language

{n: natural logarithm, Napierian logarithm} a logarithm to the base e

{n: natural number} the number 1 and any other number obtained by adding 1 to it repeatedly

{n: natural object} an object occurring naturally; not made by man
<-> artifact

{n: natural order} the physical universe considered as an orderly system subject to natural (not human or supernatural) laws

{n: natural phenomenon} all phenomena that are not artificial

{n: natural process, natural action, action, activity} a process existing in or produced by nature (rather than by the intent of human beings)
"the action of natural forces"
"volcanic activity"

{n: natural resin} a plant exudate

{n: natural resource, natural resources} resources (actual and potential) supplied by nature

{n: natural science} the sciences involved in the study of the physical world and its phenomena

{n: natural shape} a shape created by natural forces; not man-made

{n: natural theology} a theology that holds that knowledge of God can be acquired by human reason without the aid of divine revelation

{n: natural virtue} (scholasticism) one of the four virtues (prudence and justice and fortitude and temperance) derived from nature

{n: natural, cancel} a notation cancelling a previous sharp or flat

{n: naturalist, natural scientist} a biologist knowledgeable about natural history (especially botany and zoology)

{n: naturalness} the quality of being natural or based on natural principles
"he accepted the naturalness of death"
"the spontaneous naturalness of his manner"
<-> unnaturalness

{n: natural} (craps) a first roll of 7 or 11 that immediately wins the stake

{n: natural} someone regarded as certain to succeed
"he's a natural for the job"

{n: nature study} the study of animals and plants in the natural world (usually at an elementary level)

{n: nature worship} a system of religion that deifies and worships natural forces and phenomena

{n: nature} the natural physical world including plants and animals and landscapes etc.
"they tried to preserve nature as they found it"

{n: naturopathy} a method of treating disease using food and exercise and heat to assist the natural healing process

{n: nose} a natural skill
"he has a nose for good deals"

{n: nouvelle cuisine} a school of French cooking that uses light sauces and tries to bring out the natural flavors of foods instead of making heavy use of butter and cream

{n: organic phenomenon} (biology) a natural phenomenon involving living plants and animals

{n: osmiridium, iridosmine} a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum); used in needles and pen nibs etc.

{n: outgrowth, branch, offshoot, offset} a natural consequence of development

{n: ovulation method of family planning, ovulation method} natural family planning in which the fertile period is inferred from changes in the character and quantity of cervical mucus; ovulation is marked by an increase in mucus that becomes sticky and then clearer and slippery

{n: pacemaker, artificial pacemaker} an implanted electronic device that takes over the function of the natural cardiac pacemaker

{n: park, parkland} a large area of land preserved in its natural state as public property
"there are laws that protect the wildlife in this park"

{n: parlance, idiom} a manner of speaking that is natural to native speakers of a language

{n: part, piece} a portion of a natural object
"they analyzed the river into three parts"
"he needed a piece of granite"

{n: petrochemical} any compound obtained from petroleum or natural gas

{n: physical phenomenon} a natural phenomenon involving the physics of matter and energy

{n: physics, physical science, natural philosophy} the science of matter and energy and their interactions

{n: plant process, enation} a natural projection or outgrowth from a plant body or organ

{n: pollution} undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities

{n: preservationist} someone who advocates the preservation of historical sites or endangered species or natural areas

{n: principle, rule} a rule or law concerning a natural phenomenon or the function of a complex system
"the principle of the conservation of mass"
"the principle of jet propulsion"
"the right-hand rule for inductive fields"

{n: process, outgrowth, appendage} a natural prolongation or projection from a part of an organism either animal or plant
"a bony process"

{n: proclivity, propensity, leaning} a natural inclination
"he has a proclivity for exaggeration"

{n: promontory, headland, head, foreland} a natural elevation (especially a rocky one that juts out into the sea)

{n: propane} colorless gas found in natural gas and petroleum; used as a fuel

{n: proration} the proportional limitation of production or distribution of something (e.g. crude oil or natural gas) to some fractional part of the total capacity of each producer

{n: protective covering} the tough natural covering of some organisms

{n: psychic} a person apparently sensitive to things beyond the natural range of perception

{n: racial immunity} natural immunity shared by all members of a particular race

{n: raw wool} wool in its natural condition; not refined or processed

{n: receptiveness, receptivity, openness} willingness or readiness to receive (especially impressions or ideas)
"he was testing the government's receptiveness to reform"
"this receptiveness is the key feature in oestral behavior, enabling natural mating to occur"
"their receptivity to the proposal"

{n: recitative} a vocal passage of narrative text that a singer delivers with natural rhythms of speech

{n: renewable resource} any natural resource (as wood or solar energy) that can be replenished naturally with the passage of time

{n: resonance} a vibration of large amplitude produced by a relatively small vibration near the same frequency of vibration as the natural frequency of the resonating system

{n: rhythm method of birth control, rhythm method, rhythm, calendar method of birth control, calendar method} natural family planning in which ovulation is assumed to occur 14 days before the onset of a period (the fertile period would be assumed to extend from day 10 through day 18 of her cycle)

{n: ridge} a long narrow natural elevation on the floor of the ocean

{n: ridge} a long narrow natural elevation or striation

{n: rind} the natural outer covering of food (usually removed before eating)

{n: river} a large natural stream of water (larger than a creek)
"the river was navigable for 50 miles"

{n: rubber, natural rubber, India rubber, gum elastic, caoutchouc} an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products

{n: rubber, synthetic rubber} any of various synthetic elastic materials whose properties resemble natural rubber

{n: sample} all or part of a natural object that is collected and preserved as an example of its class

{n: scene-stealer} an actor who draws more attention than other actors in the same scene
"babies are natural scene-stealers"

{n: season, time of year} one of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions
"the regular sequence of the seasons"

{n: sediment, deposit} matter that has been deposited by some natural process

{n: self-preservation} preservation of yourself from harm; a natural or instinctive tendency

{n: sense} a natural appreciation or ability
"a keen musical sense"
"a good sense of timing"

{n: showplace} a place that is frequently exhibited and visited for its historical interest or natural beauty

{n: skin, tegument, cutis} a natural protective body covering and site of the sense of touch
"your skin is the largest organ of your body"

{n: sleep, slumber} a natural and periodic state of rest during which consciousness of the world is suspended
"he didn't get enough sleep last night"
"calm as a child in dreamless slumber"

{n: sodium, Na, atomic number 11} a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)

{n: spontaneity, spontaneousness} the quality of being spontaneous and coming from natural feelings without constraint
"the spontaneity of his laughter"

{n: spontaneous abortion, miscarriage, stillbirth} a natural loss of the products of conception
<-> live birth

{n: sprachgefuhl} an intuitive feeling for the natural idiom of a language
"Dubyuh has no sprachgefuhl"

{n: spring, fountain, outflow, outpouring, natural spring} a natural flow of ground water

{n: staple, staple fiber, staple fibre} a natural fiber (raw cotton, wool, hemp, flax) that can be twisted to form yarn
"staple fibers vary widely in length"

{n: sterol, steroid alcohol} any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances

{n: stick lac} lac in its natural state as scraped off twigs and dried

{n: stream, watercourse} a natural body of running water flowing on or under the earth

{n: sublimation} (psychology) modifying the natural expression of an impulse or instinct (especially a sexual one) to one that is socially acceptable

{n: supernaturalism, supernaturalness} the quality of being attributed to power that seems to violate or go beyond natural forces

{n: survival, survival of the fittest, natural selection, selection} a natural process resulting in the evolution of organisms best adapted to the environment

{n: syntax checker} a program to check natural language syntax

{n: tar pit} a natural accumulation of bitumens at the surface of the earth; often acts as a trap for animals whose bones are thus preserved

{n: taxonomic group, taxonomic category, taxon} animal or plant group having natural relations

{n: taxonomy} practice of classifying plants and animals according to their presumed natural relationships

{n: tendency, inclination} a characteristic likelihood of or natural disposition toward a certain condition or character or effect
"the alkaline inclination of the local waters"
"fabric with a tendency to shrink"

{n: terrain intelligence} tactical intelligence on the natural and man-made characteristics of an area

{n: theological virtue, supernatural virtue} according to Christian ethics: one of the three virtues (faith and hope and charity) created by God to round out the natural virtues

{n: theory} a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena
"theories can incorporate facts and laws and tested hypotheses"
"true in fact and theory"

{n: topography} the configuration of a surface and the relations among its man-made and natural features

{n: unit, building block} a single undivided natural thing occurring in the composition of something else
"units of nucleic acids"

{n: unnaturalness} the quality of being unnatural or not based on natural principles
<-> naturalness

{n: unpretentiousness} the quality of being natural and without pretensions
<-> pretentiousness

{n: unstratified language} a programming language that (like natural language) can be used as its own metalanguage
<-> stratified language

{n: vivarium} an indoor enclosure for keeping and raising living animals and plants and observing them under natural conditions

{n: volcanic glass} a kind of natural glass produced when molten lava cools very rapidly

{n: waste, wastefulness, dissipation} useless or profitless activity; using or expending or consuming thoughtlessly or carelessly
"if the effort brings no compensating gain it is a waste"
"mindless dissipation of natural resources"

{n: water hole} a natural hole or hollow containing water

{n: watercourse} natural or artificial channel through which water flows

{n: wild, natural state, state of nature} a wild primitive state untouched by civilization
"he lived in the wild"
"they collected mushrooms in the wild"

{n: wilderness, wild} a wild and uninhabited area left in its natural condition
"it was a wilderness preserved for the hawks and mountaineers"

{v: bird, birdwatch} watch and study birds in their natural habitat

{v: broil, bake} heat by a natural force
"The sun broils the valley in the summer"

{v: build up, develop} change the use of and make available or usable
"develop land"
"The country developed its natural resources"
"The remote areas of the country were gradually built up"

{v: camouflage} disguise by camouflaging ; exploit the natural surroundings to disguise something
"The troops camoflaged themselves before they went into enemy territory"

{v: cave, spelunk} explore natural caves

{v: cut short, break short, break off} interrupt before its natural or planned end
"We had to cut short our vacation"

{v: denaturalize, denaturalise} make less natural or unnatural
<-> naturalize

{v: develop, make grow} cause to grow and differentiate in ways conforming to its natural development
"The perfect climate here develops the grain"
"He developed a new kind of apple"

{v: develop} grow, progress, unfold, or evolve through a process of evolution, natural growth, differentiation, or a conducive environment
"A flower developed on the branch"
"The country developed into a mighty superpower"
"The embryo develops into a fetus"
"This situation has developed over a long time"

{v: etiolate} bleach and alter the natural development of (a green plant) by excluding sunlight

{v: follow through} carry a stroke to natural completion after hitting or releasing a ball

{v: grow} increase in size by natural process
"Corn doesn't grow here"
"In these forests, mushrooms grow under the trees"

{v: harness} exploit the power of
"harness natural forces and resources"

{v: legitimate} make (an illegitimate child) legitimate ; declare the legitimacy of (someone)
"They legitimized their natural child"

{v: naturalize, naturalise} make more natural or lifelike
<-> denaturalize

{v: overexploit} exploit excessively
"We should not overexploit our natural resources"

{v: quick-freeze, flash-freeze} freeze rapidly so as to preserve the natural juices and flavors
"quick-freeze the shrimp"

{v: rationalize away, rationalise away} substitute a natural for a supernatural explanation of
"you can rationalize away all the strange noises you hear--there is no poltergeist in the house!"

{v: reap, harvest, glean} gather, as of natural products
"harvest the grapes"

{v: scend, surge} rise or heave upward under the influence of a natural force such as a wave
"the boats surged"

{v: sophisticate} make less natural or innocent
"Their manners had sophisticated the young girls"

{v: speak} make a characteristic or natural sound
"The drums spoke"

{v: spin} work natural fibers into a thread
"spin silk"

{v: squash, crush, squelch, mash, squeeze} to compress with violence, out of natural shape or condition
"crush an aluminum can"
"squeeze a lemon"

{v: stem} remove the stem from
"for automatic natural language processing, the words must be stemmed"

{v: support} support materially or financially
"he does not support his natural children"
"The scholarship supported me when I was in college"

{v: use, utilize, utilise, apply, employ} put into service ; make work or employ (something) for a particular purpose or for its inherent or natural purpose
"use your head!"
"we only use Spanish at home"
"I can't make use of this tool"
"Apply a magnetic field here"
"This thinking was applied to many projects"
"How do you utilize this tool?"
"I apply this rule to get good results"
"use the plastic bags to store the food"
"He doesn't know how to use a computer"

Every time a grocery clerk asks, " Paper or plastic? ", the great debate between old and new, natural and synthetic, biodegradable and not, silently unfolds in a shopper's breast in the instant it takes to decide on the answer.
每当杂货店售货员问 "要纸还是要塑料? "时,新旧观念、天然的还是合成的、能否进行生物分解等等问题就悄悄地在购物者考虑答案的瞬间,在他的心中展开争论了。

This natural selection of mutations was first proposed by another Cambridge man, Charles Darwin, in 1857, though he didn't know the mechanism for it.
突变的自然选择是由另一个剑桥人查尔斯·达尔文于 1857年首先提出的,尽管他并不知道其机制。

Absolutely not, he said, " Let it all hang out, " and whatever form the sentences take will reflect the writer at his most natural.
他说,绝对不要修改, "让它一切顺其自然, "而且句子无论采取何种形式都将反映出最自然状态下的作者。

As a matter of interest, the United States-based lobby group Negative Population Growth calculates that 250 people are born each minute and 103 die, making a natural world increase in population of 147 per minute, or 8,820 per hour.
出于兴趣,美国名为 "人口负增长 "的院外活动集团测算:每分钟 250人出生, 103人死亡,这使世界人口每分钟自然增长 147人,或每小时 8820人。

With all existing methods of conception, both natural and assisted, all children of such women would inherit the disease causing genes.

To Zoe's delight, Carmen had a natural artistic bent.

Many diseases that could harm humans may be both undetectable and harmless in their natural hosts.

The Three Tenors Appeal to Millions
Three tenor singers whose natural home is the stage of the international opera house, continue to make a giant impact with ordinary people all over the world.
The tenor is the dominant hero of the opera stage, a lead among leaders, the champion of the high C.
歌剧舞台的主角是男高音,他们是主角中的主角,高音 C 的捍卫者。

From there it was a " natural progression " to the Mongrel Mob.
打那时起,他就 "顺势发展 "到 "混合帮 "了。

Using a laser, Epstein carefully cut along a natural fissure in the cord.

Is it natural selection that makes women go for taller men?

Fathers and birth do not go together--it is not, he claims, natural.

He said that men inhibit women's natural responses in what should be a " primaeval act " and that they increase the pressure for an artificial birth--because they find their wives ' pain so disturbing.
他说男士们抑制了女性的那种本应为一种 "原始行为 "的自然反应,他们增添了人工分娩的压力-因为他们觉得妻子的痛苦太令人揪心了。

By constantly asking 'rational' questions and asking his partner whether she is all right, the man inadvertently stimulates the intellectual part of her brain and interferes with the natural birthing process.
由于不停地问些 '的思维活动。理性 '地问些 '的思维活动。问题和问其妻子是否良好,男人只会在无意之中刺激他妻子大脑的理智部分,从而干扰自然的分娩过程。 "

" In aiming to be protective of his wife, a man might request that she has an epidural( pain relief) or even a caesarean section birth so that she won't have to endure too much pain.
Thus the woman misses out on the natural birthing experience. "
于是产妇便失去了自然分娩的经历。 "

Dr Odent blames the male love of technology and equipment for many of the complications which women experience when trying to proceed with a natural, drug-free birth.

" It is natural to want to take the pain away from a person you love, " she said.
她说: "要你所爱的人免受痛苦是自然的事情。
" It's like when your child hurts itself and you feel powerless and want to take away the pain. "
正如你的孩子伤了自己的时候,你既感到无能为力,又想解除他的痛苦一样。 "

" It's natural for a young sport, " says CNN boxing analyst Steve Farhood.
CNN 的拳击分析家斯蒂夫·法霍德说: "这种现象对一项年轻的体育运动来说是自然的,
" But the thin talent pool prohibits consistent, well-matched bouts. "
但是人才储备的缺乏会妨碍前后一致、旗鼓相当的比赛。 "

Reportedly scientists at Brandeis University in the U.S. have developed a computer program that uses the principles of natural selection to evolve robots.

One potential drawback to blocking gamma secretase is that no one is sure what its natural role in the body might be.

Located 200 km northeast of Singapore, this is a perfect, natural contrast to the city's urban pleasures.
这个位于新加坡东北 200公里处的岛屿呈现出一派完美无缺的天然景观,与城市生活中的各种乐趣截然相反。

Posted by the Nevada Commission on Tourism, the site shows a different, more natural, side of what is perhaps the most artificial place on earth.

When New York City's American Museum of Natural History announced a few years ago that it would be rebuilding its hallowed Hayden Planetarium from the ground up, lots of nostalgic New Yorkers screamed to the heavens and Neil de Grasse Tyson, the planetarium's recently appointed director, couldn't blame them.

Emode.com's funny tests can tell you whether you e a natural leader, a risk taker or just high maintenance.
Emode.com 网站中有趣的测验能够分辨出你是否具有天生的领导才能,是否喜欢冒险,或者是否习惯于高消费。

Baylis, whose previous brainstorms include a clockwork radio, has announced the founding of a company to manufacture shoes that produce electrical power using the natural motion of walking.

" No matter how well preserved the DNA looks, " says biologist Rob DeSalle of the American Museum of Natural History in New York City, " It's probably not. "
不管这 DNA 看上去保存得有多好,纽约的美国自然历史博物馆的生物学家罗布·德萨利说,实际情形可能正好相反。

As we make progress against the old diseases, the threat in the next century will be the new microbes, natural and man-made.

Dr. Carol Frye of the orthopedic academy: "( Even) walking shoes should be at least 21/2 in. thick in the heel area, giving you comfortable cushioning, and have a rocker-sole design that encourages the foot's natural roll as you move. "
美国整形外科研究院的卡罗尔·弗莱医生说:(即使是)走路用的鞋,鞋跟也必须最少有 21英寸厚,这样会有舒适的软垫,还必须有左右摆动的鞋底,使脚能随着你的移动自然摇动。

The key is a gene known as SHH that determines natural on-off cycles of hair growth.
关键在于一种叫 SHH 的基因。正是它决定了头发生长、脱落的自然周期。

Nor do manufacturers of so-called nutriceuticals?? he unregulated natural " Medications " found in health-food stores and supermarkets.

A recent best-selling biography, The Endurance by Caroline Alexander, and an exhibition at New York's American Museum of Natural History helped start a popular buzz that has migrated to the business world.

Eat " natural " peanut butter, the kind in which the oil rises to the top.

Part of this response was the natural reaction to the disturbance of set ideas.

The natural radioactivity we find on Earth is the long-lived remnant of the time when now-earthly matter was expelled into space by a major stellar explosion.

Yet beneath the overlay of cultural detail, they, too, are said to be biological in direction, and therefore as natural to us as are our appendixes.

Studies by Hargrave and Geen estimated natural community graz- ing rates by measuring feeding rates of individual zooplankton species in the laboratory and then computing community grazing rates for field conditions using the known population density of grazers.

Using a specially prepared feeding chamber, Haney was able to record zooplankton grazing rates in natural field conditions.

Only when a system possesses natural or artificial boundaries that associate the water within it with the hydrologic cycle may the entire system properly be termed hydrogeologic.

The natural limits of our eyes have, of course, been extended by mechanical instruments; telescopes and microscopes, for example, expand our capabilities greatly.

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