/ Dictionary / Index P peamouth: Meaning and Definition of Find definitions for: pea•mouth Pronunciation: (pē'mouth"), [key] — pl. -mouths a minnow, Mylocheilus caurinus, of northwestern U.S. and British Columbian waters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Peale pean Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language