/ Dictionary / Index B bisulfite: Meaning and Definition of Find definitions for: bi•sul•fite Pronunciation: (bī-sul'fīt), [key] — n. Chem. a salt of sulfurous acid, containing the HSO group; an acid sulfite; a hydrogen sulfite, as sodium bisulfite, NaHSO. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bisulfide Bisutun Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language