/ Dictionary / Index H hallucinate: Meaning and Definition of Find definitions for: hal•lu•ci•nate Pronunciation: (hu-l'su-nāt"), [key] — v., -nat•ed, -nat•ing. —v.i. to have hallucinations. —v.t. to affect with hallucinations. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hallucinate (Thesaurus) hallucal hallucination Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language