steroid
noun [ C ] uk/ˈste.rɔɪd/ /ˈstɪər.ɔɪd/ us/ˈster.ɔɪd/ /ˈstɪr.ɔɪd/
甾族化合物，类固醇
one of the different types of chemical substances that are produced in the body
（人工合成的用于治疗某些疾病的）类固醇
an artificial form of a natural chemical substance that is used for treating particular medical conditions
I'm taking steroids/I'm on steroids for my asthma. 我正在服用类固醇治我的哮喘。
（有时被运动员违规服用的用于促使肌肉发达的）类固醇
a drug that increases the development of your muscles, sometimes taken illegally by people taking part in sports competitions