/ Dictionary / Index E ethyl urethane: Meaning and Definition of Find definitions for: eth'yl u'rethane Pronunciation: [key] — Chem. Chem. urethane (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ethyl sulfide ethyne Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language