/ Dictionary / Index S sulfhydryl: Meaning and Definition of Find definitions for: sulf•hy•dryl Pronunciation: (sulf-hī'dril), [key] — adj. Chem. mercapto. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sulfatize sulfide Related Content Daily Word Quiz: divulge Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language