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Definition of Mental deficiency
1. Noun. Mild mental retardation.
Exact synonyms: Moronity
Generic synonyms: Backwardness, Mental Retardation, Retardation, Slowness, Subnormality
Generic synonyms: Backwardness, Mental Retardation, Retardation, Slowness, Subnormality
Medical Definition of Mental deficiency
1. Subnormal intellectual functioning which originates during the developmental period and is associated with impairment of one or more of the following: (1) maturation, (2) learning, (3) social adjustment. (12 Dec 1998)