Any of numerous compounds containing a 17-carbon 4-ring system and including the sterols and various hormones (as anabolic steroids) and glycosides.

【医】类固醇。由十七个碳原子所组成的四环的化合物之通称，包含固醇 (sterols) 、各种荷尔蒙(同化性类固醇 anabolic steroids)及配醣体(glycosides)。