Medical Dictionary


noun ste·roid \ˈsti(ə)r-ˌid also ˈste(ə)r-\

Medical Definition of STEROID

:  any of numerous natural or synthetic compounds containing a 17-carbon 4-ring system and including the sterols and various hormones and glycosides—see anabolic steroid
steroid or ste·roi·dal \stə-ˈrid-əl\ adjective
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