/ Dictionary / Index S stigmasterol: Meaning and Definition of Find definitions for: stig•mas•ter•ol Pronunciation: (stig-mas'tu-rôl", -rōl"), [key] — n. Biochem. a crystalline, water-insoluble steroid, CHO, present in soybeans or calabar beans, used chiefly as a raw material in the manufacture of progesterone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stigma stigmatic Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language