| 单词 | variable |
| 释义 | variable —variability, variableness, n. —variably, adv. /vair"ee euh beuhl/, adj. 1. apt or liable to vary or change; changeable: variable weather; variable moods. 2. capable of being varied or changed; alterable: a variable time limit for completion of a book. 3. inconstant; fickle: a variable lover. 4. having much variation or diversity. 5. Biol. deviating from the usual type, as a species or a specific character. 6. Astron. (of a star) changing in brightness. 7. Meteorol. (of wind) tending to change in direction. 8. Math. having the nature or characteristics of a variable. n. 9. something that may or does vary; a variable feature or factor. 10. Math. , Computers. a. a quantity or function that may assume any given value or set of values. b. a symbol that represents this. 11. Logic. (in the functional calculus) a symbol for an unspecified member of a class of things or statements. Cf. bound variable, free variable. 12. Astron. See variable star. 13. Meteorol. a. a shifting wind, esp. as distinguished from a trade wind. b. variables, doldrums (def. 2a). [1350-1400; late ME < L variabilis, equiv. to vari(us) VARIOUS + -abilis -ABLE] Syn. 3. vacillating, wavering, fluctuating, unsteady, mercurial. Ant. 1, 3. constant. |
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