/ Dictionary / Index P polyposis: Meaning and Definition of Find definitions for: pol•yp•o•sis Pronunciation: (pol"u-pō'sis), [key] — n. Pathol. the development of numerous polyps on a hollow internal organ, seen esp. in the intestinal tract. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polypore polypous Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language