/ Dictionary / Index D dementia praecox: Meaning and Definition of Find definitions for: demen'tia prae'cox Pronunciation: (prē'koks), [key] — Psychiatry. Psychiatry. schizophrenia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dementia demento Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language