an erosion of the mucous membrane of the lower esophagus, stomach, or duodenum, caused in part by the corrosive action of the gastric juice.
Origin of peptic ulcer
First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for peptic ulcer
pathol an ulcer of the mucous membrane lining those parts of the alimentary tract exposed to digestive juices. It can occur in the oesophagus, the stomach, the duodenum, the jejunum, or in parts of the ileum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for peptic ulcer
An ulcer of the upper digestive tract, usually in the stomach or duodenum, where the mucous membrane is exposed to gastric secretions.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.