/ Dictionary / Index P pyonephritis: Meaning and Definition of Find definitions for: py•o•ne•phri•tis Pronunciation: (pī"ō-nu-frī'tis), [key] — n. Pathol. suppurative inflammation of the kidney. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pyoid Pyongyang Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language