/ Dictionary / Index P polyphagia: Meaning and Definition of Find definitions for: pol•y•pha•gi•a Pronunciation: (pol"ē-fā'jē-u, -ju), [key] — n. excessive desire to eat. the habit of subsisting on many different kinds of food. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polypetalous polypharmacy Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language