/ Dictionary / Index A aluminum fluosilicate: Meaning and Definition of Find definitions for: alu'minum fluosil'icate Pronunciation: [key] — Chem. Chem. a white, water-soluble powder, Al(SiF), used in the manufacture of optical glass and of synthetic sapphires and rubies. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aluminum chloride aluminum glycinate Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language