Noun
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a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
-
a star that varies noticeably in brightness
- variable star -
a quantity that can assume any of a set of values
- variable quantity -
something that is likely to vary
something that is subject to variation
"the weather is one variable to be considered"
Adjective
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(used of a device) designed so that a property (as e.g. light) can be varied
"a variable capacitor"
"variable filters in front of the mercury xenon lights"
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marked by diversity or difference
"the varying angles of roof slope"
"nature is infinitely variable"
-
liable to or capable of change
"rainfall in the tropics is notoriously variable"
"variable winds"
"variable expenses"