/ˈsterɔɪd ||; ˈstɛrɔɪd/noun [C] a chemical substance produced naturally in the body. There are several different types of steroids. They can be used to treat various diseases and are also sometimes used illegally by people playing sports to improve their performance. 类固醇（体内产生的一种化学物质，种类很多，能治疗各种疾病，有时运动员将其作为兴奋剂服用） ☞Look at anabolic steroid. 参看anabolic steroid。