/ Dictionary / Index H helleborin: Meaning and Definition of Find definitions for: hel•leb•o•rin Pronunciation: (he-leb'u-rin, hel'u-bôr"in, -bōr"-), [key] — n. a colorless, crystalline, water-insoluble, poisonous solid, CHO, obtained from the rhizome and root of certain hellebores, and used in medicine chiefly as a purgative. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. helleborein Hellene Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language