coe·li·ac dis·ease British EnglishBrE, celiac disease American EnglishAmE /ˈsiːliæk dɪˌziːz/ noun [uncountableU] a medical condition in which someone cannot digest food properly that contains gluten (=a substance found in wheat) 乳糜泻,麸质过敏症〔不能消化含麸质食物的疾病〕