/ Thesaurus / P Synonyms of peritoneal inflammation Find synonyms for: Noun1. peritonitis, peritoneal inflammation, inflammation, redness, ruborusage: inflammation of the peritoneumWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. 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