variable

variable

名词 variable:

something that is likely to vary; something that is subject to variation

a quantity that can assume any of a set of values

同义词：variable quantity

a star that varies noticeably in brightness

同义词：variable star

a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity

形容词 variable:

liable to or capable of change

marked by diversity or difference

同义词：varying

(used of a device) designed so that a property (as e.g. light) can be varied