/ Dictionary / Index H hypnoidal: Meaning and Definition of Find definitions for: hyp•noi•dal Pronunciation: (hip-noid'l), [key] — adj. Psychol. characterizing a state that resembles mild hypnosis but that is usually induced by other than hypnotic means. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hypnograph hypnology Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language