/ Dictionary / Index T thiothixene: Meaning and Definition of Find definitions for: thi•o•thix•ene Pronunciation: (thī"ō-thik'sēn), [key] — n. Pharm. a potent antipsychotic, CHNOS, used in the management of schizophrenia and related psychoses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thiothixene (Thesaurus) thiosulfuric acid thiouracil Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language