/ Dictionary / Index E erythorbic acid: Meaning and Definition of Find definitions for: er'y•thor'bic ac'id Pronunciation: (er'u-thôr'bik, er"-), [key] — Chem. Chem. a crystalline compound, CHO, soluble in water: used as an antioxidant for food and as a reducing agent in photography. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. erythorbate erythrism 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