劍橋詞典abbreviation for Clostridium difficile: a type of bacterium (= an extremely small organism ) that can cause serious illness and that is very difficult to treat 艱難梭菌（一種細菌，極小的生物，能導致難以治瘉的重病，Clostridium difficile的縮寫） The elderly are at increased risk from C. diff. 老人更容易感染艱難梭菌。 返回 C. difficile