/ Dictionary / Index A acraldehyde: Meaning and Definition of Find definitions for: a•cral•de•hyde Pronunciation: (u-kral'du-hīd"), [key] — n. Chem. acrolein. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acr- acrasin Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language