- the branch of psychology that deals with modes of behavior, mental phenomena, etc., that deviate markedly from the standards believed to characterize a well-adjusted personality.
Origin of abnormal psychology
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
- the study of behaviour patterns that diverge widely from generally accepted norms, esp those of a pathological nature
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