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.
Meteorologyvariables, doldrums (def. 2a).
Latin variābilis, equivalent. to vari(us) various + -ābilis -able
late Middle English 1350–1400
var′i•a•bil′i•ty, var′i•a•ble•ness, n. var′i•a•bly, adv.
3.See corresponding entry in Unabridged vacillating, wavering, fluctuating, unsteady, mercurial.
1, 3.See corresponding entry in Unabridged constant.