| | Conditions & Treatments | Ulcers What is the medical term meaning ulcer of stomach and small intestine? The correct answer is Peptic ulcer. A peptic ulcer is an ulcer that affects the lining of the stomach or the small intestine. Ulcers - Related Articles What Is in Magic Mouthwash? Stomach Ulcer Diagnosis How Much Omega 3 to Take for Stress? How to Diagnose Zollinger-Ellison Syndrome Duodenal Ulcer Symptoms Symptoms of Acid Reflux, Ulcers & Gastroparesis How many minutes should you keep salt on a mouth ulcer?