a painful area on the outside of the body or on the surface of an organ inside the body that may bleed or produce a poisonous substance 溃疡 a stomach ulcer 胃溃疡 There is a family history of gastric ulcer disease. 有胃溃疡疾病家族史。
Oxford Collocations DictionaryUlcer is used before these nouns:- recurrence
- leg
- mouth
- stomach
- …
Word Originlate Middle English: from Latin ulcus, ulcer-.