/ Dictionary / Index H hypnagogic state: Meaning and Definition of Find definitions for: hyp'nagog'ic state' Pronunciation: [key] — Psychol. Psychol. the drowsy period between wakefulness and sleep, during which fantasies and hallucinations often occur. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hypnagogic hypno- Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language