/ Dictionary / Index S stilbite: Meaning and Definition of Find definitions for: stil•bite Pronunciation: (stil'bīt), [key] — n. a white-to-brown or red zeolite mineral, a hydrous silicate of calcium and aluminum, occurring in sheaflike aggregates of crystals and in radiated masses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stilbene stile Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language