/ Dictionary / Index P prochronism: Meaning and Definition of Find definitions for: pro•chro•nism Pronunciation: (prō'kru-niz"um, prok'ru-), [key] — n. a chronological error in which a person, event, etc., is assigned a date earlier than the actual one; prolepsis. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prochoos proclaim Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language