/ Dictionary / Index A acrolein: Meaning and Definition of Find definitions for: a•cro•le•in Pronunciation: (u-krō'lē-in), [key] — n. Chem. a yellow, flammable liquid, CHO, having a stifling odor, usually obtained by the decomposition of glycerol: used chiefly in the synthesis of commercial and pharmaceutical products. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acrolein (Thesaurus) acrolect acrolith Related Content Daily Word Quiz: knead Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language