/ Dictionary / Index S sulfatase: Meaning and Definition of Find definitions for: sul•fa•tase Pronunciation: (sul'fu-tās", -tāz"), [key] — n. Biochem. any of a class of enzymes that catalyze the hydrolysis of sulfuric acid esters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sulfasalazine sulfate Related Content Daily Word Quiz: ablution Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language