steroidPronunciation: /ˈstɪərɔɪd, ˈstɛrɔɪd/Translate steroid | into French | into German | into Italian | into Spanish Definition of steroid noun Biochemistry any of a large class of organic compounds with a characteristic molecular structure containing four rings of carbon atoms (three six-membered and one five). They include many hormones, alkaloids, and vitamins. short for anabolic steroid.Derivatives steroidalPronunciation: /-ˈrɔɪd(ə)l/ adjective Origin: 1930s: from sterol + -oidsteroid in other Oxford dictionaries Definition of steroid in the US English dictionary
