/ Dictionary / Index A aluminum chloride: Meaning and Definition of Find definitions for: alu'minum chlo'ride Pronunciation: [key] — Chem. Chem. a yellow-white, crystalline, water-soluble solid that in its white hydrated form, AlCl&multiplydot;6HO, is used chiefly as a wood preservative and in its yellow-white anhydrous form, AlCl, chiefly as a catalyst. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aluminum carbide aluminum fluosilicate Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language