/ Dictionary / Index A antipsychotic: Meaning and Definition of Find definitions for: an•ti•psy•chot•ic Pronunciation: (an"tē-sī-kot'ik, an"tī-), [key] — Pharm. Pharm. —adj. of or pertaining to any of various substances used in the treatment of psychosis, esp. schizophrenia, and acute or severe states of mania, depression, or paranoia. —n. Also calledany such substance, as the phenothiazines. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: antipsychotic (Thesaurus) antipruritic antipyretic Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language