/ Thesaurus / P Synonyms of periodontal disease Find synonyms for: Noun1. periodontal disease, periodontitis, diseaseusage: a disease that attacks the gum and bone and around the teethWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language