Definition of abnormality noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌæbnɔːˈmæləti//
; NAmE NAmE//ˌæbnɔːrˈmæləti//
(pl. abnormalities) [countable, uncountable] Being ill
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a feature or characteristic in a person’s body or behaviour that is not usual and may be harmful, worrying or cause illness abnormalities of the heart congenital/foetal abnormality See related entries: Being illExtra examples She has some sort of abnormality of the womb. Some genetic mutations can cause abnormalities in the child. congenital/​foetal abnormality
See the Oxford Advanced American Dictionary entry: abnormality