ulcer

      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.