APA Dictionary of Psychology
mentally defective
- in some legal jurisdictions in the United States, an outdated though still used descriptor for persons with a mental illness or neurological disorder that renders them incapable of appraising the nature of their conduct.
- a historical and obsolete term, now considered offensive, for a person with intellectual developmental disorder or a learning disability, that should not be used in reference to a person or persons.
Updated on 11/15/2023
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