alienist

noun alien·ist \-nist\

Definition of ALIENIST

French aliéniste, from aliéné insane, from Latin alienatus, past participle of alienare to estrange, from alienus

First Known Use: 1864

Medical Dictionary

noun alien·ist \ˈā-lē-ə-nəst, ˈāl-yə-\

: psychiatrist; especially : one specializing in the legal aspects of psychiatry

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