megacolon /,me^ә'kәulәn/ 📖 中文释义 [医]巨结肠(症) 📘 English Definition(英文释义) n an abnormal enlargement of the colon; can be congenital (as in Hirschsprung's disease) or acquired (as when children refuse to defecate) ← megacoccus M 字母词表 megacolon congenitum →