Meaning of VARIABLE in English

VARIABLE

adj. & n.

--adj.

1. a that can be varied or adapted (a rod of variable length; the pressure is variable). b (of a gear) designed to give varying speeds.

2 apt to vary; not constant; unsteady (a variable mood; variable fortunes).

3 Math. (of a quantity) indeterminate; able to assume different numerical values.

4 (of wind or currents) tending to change direction.

5 Astron. (of a star) periodically varying in brightness.

6 Bot. & Zool. (of a species) including individuals or groups that depart from the type.

7 Biol. (of an organism or part of it) tending to change in structure or function.

--n.

1. a variable thing or quantity.

2 Math. a variable quantity.

3 Naut. a a shifting wind. b (in pl.) the region between the NE and SE trade winds.

Derivatives:

variability n. variableness n. variably adv.

Etymology: ME f. OF f. L variabilis (as VARY)

Oxford English vocab.      Оксфордский английский словарь.