Element
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[编辑] 解释
[编辑] GRE 红宝书
- n. 要素, 特色
- ［英］ n. 要素, 特色 ( necessary part of sth)
[编辑] Webster Collegiate
noun
- Etymology: Middle English, from Anglo-French & Latin; Anglo-French, from Latin elementum
- Date: 13th century
- 1.
- a. any of the four substances air, water, fire, and earth formerly believed to compose the physical universe
- b. plural weather conditions; especially violent or severe weather <battling the elements>
- c. the state or sphere natural or suited to a person or thing <at school she was in her element>
- 2. a constituent part: as
- a. plural the simplest principles of a subject of study ; rudiments
- b.
- (1) a part of a geometric magnitude <an infinitesimal element of volume>
- (2) a generator of a geometric figure; also a line or line segment contained in the surface of a cone or cylinder
- (3) a basic member of a mathematical or logical class or set
- (4) one of the individual entries in a mathematical matrix or determinant
- c. a distinct group within a larger group or community <the criminal element in the city>
- d.
- (1) one of the necessary data or values on which calculations or conclusions are based
- (2) one of the factors determining the outcome of a process
- e. any of the fundamental substances that consist of atoms of only one kind and that singly or in combination constitute all matter
- f. a distinct part of a composite device
- g. a subdivision of a military unit
- 3. plural the bread and wine used in the Eucharist
- Synonyms:
- element, component, constituent, ingredient mean one of the parts of a compound or complex whole. element applies to any such part and often connotes irreducible simplicity <the basic elements of geometry>. component and constituent may designate any of the substances (whether elements or compounds) or the qualities that enter into the makeup of a complex product; component stresses its separate entity or distinguishable character<the components of a stereo system>. constituent stresses its essential and formative character<the constituents of a chemical compound>. ingredient applies to any of the substances which when combined form a particular mixture<the ingredients of a cocktail>.
