Meaning of VARIANCE in English

VARIANCE

/ ˈveəriəns; NAmE ˈver-; ˈvær-/ noun

[ U , C ] ( formal ) the amount by which sth changes or is different from sth else :

variance in temperature

a note with subtle variances of pitch

IDIOMS

- at variance (with sb/sth)

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WORD ORIGIN

Middle English : via Old French from Latin variantia difference, from the verb variare , from varius diverse.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.