/ Dictionary / Index B benzophenone: Meaning and Definition of Find definitions for: ben•zo•phe•none Pronunciation: (ben"zō-fi-nōn', -fē'nōn), [key] — n. Chem. a crystalline, water-insoluble ketone, CHO, used in organic synthesis. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. benzonitrile benzopyrene Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language