/ Dictionary / Index S sulfo: Meaning and Definition of Find definitions for: sul•fo Pronunciation: (sul'fō), [key] — adj. Chem. containing the sulfo group; sulfonic. sulfo- Pronunciation: [key] var. ofesp. before a consonant: sulfocarbanilide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sulfiting agent sulfocarbanilide Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language