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Related to mentally retarded: Down syndrome, autism, cerebral palsy, Intellectual disability, Mild mental retardation, Mentally disordered
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|Noun||1.||mentally retarded - people collectively who are mentally retarded; "he started a school for the retarded"|
people - (plural) any group of human beings (men or women or children) collectively; "old people"; "there were at least 200 people in the audience"