adj. 1. apt to change; changeable; uncertain.
Ex. variable winds. The weather is more variable in New York than it is in California.
(SYN) unsteady, unstable, fluctuating, wavering, mutable.
2. likely to shift from one opinion or cour

expr. the variables, the region between the northeast and the southeast trade winds.
Ex. The meeting of the two opposite currents [of wind] here produces the intermediate space called the ... variables (Arthur Young).

noun variableness.

noun 1. a thing or quality that varies.
Ex. Temperature and rainfall are variables.
(SYN) inconstant.
2. (Mathematics.)
a. a quantity that can assume any of the values in a given set of values.
b. a symbol representing t

variable, adjective, noun.