/ Dictionary / Index P prepsychotic: Meaning and Definition of Find definitions for: pre•psy•chot•ic Pronunciation: (prē"sī-kot'ik), [key] — adj. exhibiting behavior that indicates the approach of a psychotic reaction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prep school prepuberty Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language