INVALIDATE


Meaning of INVALIDATE in English

v.tr. 1 make (esp. an argument etc.) invalid. 2 remove the validity or force of (a treaty, contract, etc.). invalidation n.

[ med.L invalidare invalidat- (as IN-(1), validus VALID) ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.