peptic ulcer(redirected from Stomach ulcer)
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peptic ulcer:see ulcerulcer,
open sore or circumscribed erosion, usually slow to heal, on the skin or mucous membranes. It may develop as a result of injury; because of a circulatory disturbance, e.g.
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peptic ulcer[′pep·tik ′əl·sər]
An ulcer involving the mucosa, submucosa, and muscular layer on the lower esophagus, stomach, or duodenum, due in part at least to the action of acid-pepsin gastric juice.
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