/ Dictionary / Index S styracaceous: Meaning and Definition of Find definitions for: sty•ra•ca•ceous Pronunciation: (stī"ru-kā'shus), [key] — adj. belonging to the Styracaceae, the storax family of plants. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Styr styralyl acetate 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