/ Dictionary / Index E ethane: Meaning and Definition of Find definitions for: eth•ane Pronunciation: (eth'ān), [key] — n. Chem. a colorless, odorless, flammable gas, CH, of the methane series, present in natural gas, illuminating gas, and crude petroleum: used chiefly in organic synthesis and as a fuel gas. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ethane (Thesaurus) ethanal Ethan Frome* Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language