/ Dictionary / Index P prison psychosis: Meaning and Definition of Find definitions for: pris'on psycho"sis Pronunciation: [key] — Psychiatry. Psychiatry. a state of mental confusion, transitory or permanent, brought on by incarceration or by the anticipation of imprisonment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prison fever prison rustic work Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language