/ Dictionary / Index B benzidine: Meaning and Definition of Find definitions for: ben•zi•dine Pronunciation: (ben'zi-dēn", -din), [key] — n. Chem. a grayish, crystalline, slightly water-soluble, basic compound, CHN, usually derived from nitrobenzene: used chiefly in the synthesis of certain azo dyes, esp. Congo red. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Benzi Box benzimidazole Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language