| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024var•i•a•ble /ˈvɛriəbəl/USA pronunciation adj. - apt to vary; changeable;
not staying the same:a cloudy day with variable winds. - that can be deliberately varied:variable power controlled by a dial.
- inconstant;
fickle:Her affections tend to be variable.
n. [countable] - something that may or does vary:a situation with many variables.
- Mathematics, Computing
- a quantity or function that may take on or assume any given value or set of values.
- a symbol that represents this:the variable x in the equation x = 15 + y.
var•i•a•bil•i•ty /ˌvɛriəˈbɪlɪti/USA pronunciation n. [uncountable] var•i•a•bly, adv. See -var-. WordReference Random House Unabridged Dictionary of American English © 2024var•i•a•ble (vâr′ē ə bəl),USA pronunciation adj. - apt or liable to vary or change;
changeable:variable weather; variable moods. - capable of being varied or changed;
alterable:a variable time limit for completion of a book. - inconstant;
fickle:a variable lover. - having much variation or diversity.
- [Biol.]deviating from the usual type, as a species or a specific character.
- Astronomy(of a star) changing in brightness.
- Meteorology(of wind) tending to change in direction.
- Mathematicshaving the nature or characteristics of a variable.
n. - something that may or does vary;
a variable feature or factor. - Mathematics, Computing
- a quantity or function that may assume any given value or set of values.
- a symbol that represents this.
- Philosophy[Logic.](in the functional calculus) a symbol for an unspecified member of a class of things or statements. Cf. bound variable, free variable.
- AstronomySee variable star.
- [Meteorol.]
- Meteorologya shifting wind, esp. as distinguished from a trade wind.
- Meteorology variables, doldrums (def. 2a).
- Latin variābilis, equivalent. to vari(us) various + -ābilis -able
- late Middle English 1350–1400
- 3.See corresponding entry in Unabridged vacillating, wavering, fluctuating, unsteady, mercurial.
- 1, 3.See corresponding entry in Unabridged constant.
Collins Concise English Dictionary © HarperCollins Publishers:: variable /ˈvɛərɪəbəl/ adj - liable to or capable of change: variable weather
- (of behaviour, opinions, emotions, etc) lacking constancy; fickle
- having a range of possible values
- (of a species, characteristic, etc) liable to deviate from the established type
- (of a wind) varying its direction and intensity
- (of an electrical component or device) designed so that a characteristic property, such as resistance, can be varied
n - something that is subject to variation
- an expression that can be assigned any of a set of values
- a symbol, esp x, y, or z, representing an unspecified member of a class of objects, numbers, etc
- a symbol, esp x, y, z, representing any member of a class of entities
- a named unit of storage that can be changed to any of a set of specified values during execution of a program
- See variable star
- a variable wind
- (plural) a region where variable winds occur
Etymology: 14th Century: from Latin variābilis changeable, from variāre to diversifyˌvariaˈbility, ˈvariableness n ˈvariably adv |