/ Dictionary / Index D dioscin: Meaning and Definition of Find definitions for: di•os•cin Pronunciation: (dī-os'in), [key] — n. Biochem. a saponin, found in Mexican yams, that on hydrolysis produces diosgenin, glucose, and rhamnose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diorite Dioscuri Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language