/ Thesaurus / P Synonyms of peptic ulcer Find synonyms for: Noun1. peptic ulcer, peptic ulceration, ulcer, ulcerationusage: an ulcer of the mucous membrane lining of the alimentary tractWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language