/ Dictionary / Index E erythritol: Meaning and Definition of Find definitions for: e•ryth•ri•tol Pronunciation: (i-rith'ri-tôl", -tol"), [key] — n. Chem., Pharm. a white, crystalline, water-soluble, sweet-tasting, tetrahydroxyl compound, CHO, related to the carbohydrates, obtained from certain lichens and used for coronary vasodilation and in the treatment of hypertension. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. erythrite erythro- Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language