an operation in which part of a person’s colon (= the lower part of the bowels) is removed and an opening is made in the abdomen through which the person can get rid of waste matter from the body; an opening formed in this way 结肠造口术 a colostomy bag 结肠瘘袋
Word Originlate 19th cent.: from colon (the main part of the large intestine) + Greek stoma ‘mouth’.