peptic ulcer: Meaning and Definition of

pep'tic ul'cer

Pronunciation: [key]
— Pathol. Pathol.
  1. an erosion of the mucous membrane of the lower esophagus, stomach, or duodenum, caused in part by the corrosive action of the gastric juice.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.