动词过去式:defined 过去分词:defined 现在分词:defining 第三人称单数:defines 副词:definably 形容词:definable 名词:definability
1 [Tn, Cn.n/a] ~ sth (as sth) state precisely the meaning of (eg words) 给（词语等）下定义.
2 [Tn, Tw] state (sth) clearly; explain (sth) 阐明（某事）; 解释（某事）
*The powers of a judge are defined by law. 法官的权力是由法律规定的.
* It's hard to define exactly what has changed. 很难解释清楚到底发生了什么变化.
3 [Tn] show (a line, shape, feature, etc) clearly; outline 清楚地显示出（线条、形状、特徵等）; 画出...的轮廓
*When boundaries between countries are not clearly defined, there is usually trouble. 国与国的边界未明确划定则通常会发生纠纷.
* The mountain was sharply defined against the eastern sky. 那座山在东方天空的衬托下显得轮廓分明.
* a well-defined profile 轮廓清晰的侧面像.
1300-1400; Language: Old French;Origin:
definer, from Latin
definire, from finire 'to limit, end'
to describe something correctly and thoroughly, and to say what standards, limits, qualities etc it has that make it different from other things the ability to define clients' needs The duties of the post are difficult to define.clearly/well defined The tasks will be clearly defined by the tutor.define sth as sth 70% of the workers can be defined as low-paid.
to explain exactly the meaning of a particular word or idea
→definition I'll now try to define the term 'popular culture'.define sth as sth A budget is defined as 'a plan of action expressed in money terms'. Define precisely what you mean by 'crime'.
to show the edge or shape of something clearly
→definition The bird has sharply defined black and rust markings.>definableadj