音标：['ʌlsә]
n. 溃疡, 腐烂物
【医】 溃疡
在线英汉词典

ulcer的短语、例句：

ulcer n open sore containing poisonous matter on the outside of the body or on the surface of an internal organ 溃疡: leg ulcers 腿部溃疡
gastric ulcers 胃溃疡
My mouth has an ulcer. 我的口腔出现了溃疡.