/ Dictionary / Index H haloperidol: Meaning and Definition of Find definitions for: hal•o•per•i•dol Pronunciation: (hal"ō-per'i-dôl", -dol"), [key] — n. Pharm. a major antipsychotic agent, CHClFNO, used in the management of schizophrenia, severe anxiety, and other behavioral disorders. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: haloperidol (Thesaurus) halolike halophile Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language