Steroid meaning

stĕr'oid', stîr'-
Any of numerous naturally occurring or synthetic fat-soluble organic compounds having as a basis 17 carbon atoms arranged in four rings and including the sterols and bile acids, adrenal and sex hormones, certain natural drugs such as digitalis compounds, and the precursors of certain vitamins.
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Any of a group of compounds including the sterols, bile acids, and sex hormones, characteristically having the carbon-atom ring structure of the sterols; specif., an anabolic steroid.
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A drug consisting of, or a regimen involving, a compound from this group.
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Any of numerous fat-soluble organic compounds that have a core structure of 17 carbon atoms arranged in four rings, found naturally in animals, plants, and fungi, or produced synthetically. Steroids include the sterols (such as cholesterol), sex hormones (such as estrogen and testosterone), corticosteroid hormones (such as cortisol), bile acids, and anabolic steroids.
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An anabolic steroid.
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Any of a large class of organic compounds having as a basis 17 carbon atoms arranged in four rings fused together. Steroids include many biologically important compounds, including cholesterol and other sterols, the sex hormones (such as testosterone and estrogen), bile acids, adrenal hormones, plant alkaloids, and certain forms of vitamins.
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Any of various hormones having the structure of a steroid that are made synthetically, especially for use in medicine.
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An anabolic steroid.
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(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.
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(bodybuilding) Any anabolic hormone used to promote muscle growth.
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(sports, US) Any chemical compound used to enhance athletic performance.
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Origin of steroid

From sterol + -oid.