/ Dictionary / Index M methyl ethyl ketone: Meaning and Definition of Find definitions for: meth'yl eth'yl ke'tone Pronunciation: [key] a colorless, flammable liquid, CHO, produced by synthesis or fermentation: used chiefly as a solvent, as a paint remover, and in the manufacture of plastics. Abbr.: MEK &hasp;Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. methylene iodide methyl formate Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language