steroid

ste·roid

noun \ˈsti(ə)r-ˌȯid also ˈste(ə)r-\

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-ˈrȯid-^əl\ adjective