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BNC: 1053 COCA: 1210

define

Word family 
de·fine /dɪˈfaɪn/ ●●● S2 W2 AWL verb [transitiveT]  
1  DESCRIBEto describe something correctly and thoroughly, and to say what standards, limits, qualities etc it has that make it different from other things 确定，说明，界定
 the ability to define clients’ needs
确定客户需求的能力
 The duties of the post are difficult to define.
这一职位的职责很难界定。
clearly/well defined
 The tasks will be clearly defined by the tutor.
导师会清楚地说明任务。
define something as something
 70% of the workers can be defined as low-paid.
70%的工人可以被划定为低收入者。
2  MEANINGto explain exactly the meaning of a particular word or idea 给…下定义，解释 → definition
 I’ll now try to define the term ‘popular culture’.
我现在来试试给 “通俗文化” 这个词下定义。
define something as something
 A budget is defined as ‘a plan of action expressed in money terms’.
“预算” 的定义是 “以钱来表述的行动计划” 。
 Define precisely what you mean by ‘crime’.
把你说的 “犯罪” 明确定义一下。
3  CLEAR/EASY TO SEEto show the edge or shape of something clearly 标明…的界限，明确显出…的轮廓 → definition
 The bird has sharply defined black and rust markings.
这只鸟长有颜色分明的黑色和铁锈色斑点。
—definable adjectiveadj
Examples from the Corpus
define• This, clearly, is another key concept in the theory, so how is it defined?• The rest of the movie, however, is not as successful; motivations are unexplained and characters are less than defined.• They define a good patient as one who accepts their state-ments and their actions uncritically and unquestioningly.• Dietary fibre can be loosely defined as the cell-wall material of plants.• The dictionary defines it as "a narrow passage".• The outer boundary of a closed figure usually defines its size.• Early childhood educators are rarely involved in defining problems, shaping solutions, or choosing options.• Each of us might define the concept of freedom in a slightly different way.• It must define the target and the date by which it is to be achieved.• Some one else defines who they are and what they stand for as public figures.
clearly/well defined• Task alignment is easiest in small units... where goals and tasks are clearly defined.• All paths and tracks are well defined and mostly signposted; route-finding quite easy.• The clearly defined black spots and red bands of courage that set the rainbow apart from other trout are truly remarkable.• It contrasts with the information needs for operational control which are well defined, detailed and accurate.• The objectives of the western operations would have to be clearly defined from the start.• It is for this reason that technical terms be clearly defined in this section of the proposal.• It appeared to roll forward and unfold under its own natural momentum, to reach its clearly defined objectives.• At the beginning of each year a timetable is prepared and each year group follows a clearly defined, predetermined curriculum.
sharply defined• Within this framework, every character is sharply defined.• It was a wrenching moment for Feingold: He stood sharply defined against a background that was all too schematic.• His nose was long and straight and his mouth was sharply defined and beautifully shaped.• Zoologists today might not agree that the division is quite so sharply defined as Wallace suggested.• The cloud bases are fairly sharply defined because of the steady decrease of temperature with altitude.• In fact there are some nice examples of mixes of higher education and new technology thriving in sharply defined cultural niches.• Only she, and you as her parents, have any sharply defined reality.• Differs from marsh terns in winter by square white tail, smoky underwing and no sharply defined white shoulder.• Leung draws his pictures with lines that are sharply defined , with clean angles and shadows.
Origin define
(1300-1400) Old French definer, from Latin definire, from finire “to limit, end”
de·fine verb
Chinese
Syllable
Corpus

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