/ Dictionary / Index E epoxide: Meaning and Definition of Find definitions for: ep•ox•ide Pronunciation: (e-pok'sīd, i-pok'-), [key] — n. Chem. an organic chemical that contains a group consisting of an oxygen atom bound to two already connected atoms, usually carbonCf. epoxy (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. epoxidation epoxidize Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language