/ Dictionary / Index B benzaldehyde: Meaning and Definition of Find definitions for: benz•al•de•hyde Pronunciation: (ben-zal'du-hīd"), [key] — n. Chem. a colorless or yellowish, water-soluble, volatile oil, CHO, having a bitter, almondlike odor, used chiefly in the organic synthesis of dyes, perfumes, and flavors, and as a solvent; artificial oil of bitter almond. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. benzal chloride benzal group Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language