mental retardation
mental retardation
nounDefinition of MENTAL RETARDATION
: subaverage intellectual ability equivalent to or less than an IQ of 70 that is accompanied by significant deficits in abilities (as in communication or self-care) necessary for independent daily functioning, is present from birth or infancy, and is manifested especially by delayed or abnormal development, by learning difficulties, and by problems in social adjustment
— mentally retarded adjective
See First Known Use of MENTAL RETARDATION
1914
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