col·os·tomyBrE/kəˈlɒstəmi/NAmE/kəˈlɑːstəmi/noun (col·os·tomies) (medical医学) anoperationinwhichpartofaperson'scolon is removed and an opening is made in the abdomen(= thelowerpartofthebowels)isremovedandanopeningismadeintheabdomenthroughwhichthepersoncangetridofwastematterfromthebody结肠造口术