- Noun. (biochemistry) A class of organic compounds having a structure of 17 carbon atoms arranged in four rings; they are lipids, and occur naturally as sterols, bile acids, adrenal and sex hormones, and some vitamins; many drugs are synthetic steroids.
- Noun. (bodybuilding) Any anabolic hormone used to promote muscle growth.
- Noun. (sports, US) Any chemical compound used to enhance athletic performance.
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This entry was last updated on RefTopia from its source on 3/20/2012.