/ Dictionary / Index P pyloroplasty: Meaning and Definition of Find definitions for: py•lo•ro•plas•ty Pronunciation: (pī-lôr'u-plas"tē, -lōr'-, pi-), [key] — n. the surgical alteration of the pylorus, usually a widening to facilitate the passage of food from the stomach to the duodenum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pyloric stenosis pylorus Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language