mental retardation

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noun

Usually Offensive. a developmental disorder characterized in varying degrees by a subnormal ability to learn, a substantially low IQ, and impaired social adjustment.

Origin of mental retardation

First recorded in 1900–15

Usage note

See retarded.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for mental retardation

dementia, amentia

British Dictionary definitions for mental retardation

mental retardation

noun

psychiatry the condition of having a low intelligence quotient (below 70)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mental retardation in Medicine

mental retardation

n.

Subnormal intellectual development or functioning that is the result of congenital causes, brain injury, or disease and is characterized by any of various deficiencies, ranging from impaired learning ability to social and vocational inadequacy.mental deficiency

mental retardation in Science

mental retardation

Below-average intellectual ability resulting from a genetic defect, brain injury, or disease, and usually present from birth or early infancy.