Meaning of VARIABLE in English

VARIABLE

■ adjective

1》 not consistent or having a fixed pattern; liable to vary.

↘ Mathematics (of a quantity) able to assume different numerical values.

↘ Botany & Zoology (of a species) liable to deviate from the typical colour or form, or to occur in different colours or forms.

2》 able to be changed or adapted.

↘(of a gear) designed to give varying ratios or speeds.

■ noun a ~ factor or quantity.

↘ Astronomy a star whose brightness changes (regularly or irregularly).

↘( ~s ) the region of light, ~ winds to the north of the NE trade winds or (in the southern hemisphere) between the SE trade winds and the westerlies.

Derivatives

variability noun

~ness noun

variably adverb

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.