/ Dictionary / Index E ethoxide: Meaning and Definition of Find definitions for: eth•ox•ide Pronunciation: (eth-ok'sīd), [key] — n. Chem. ethylate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ethosuximide ethoxy Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language