/ Dictionary / Index B barium chloride: Meaning and Definition of Find definitions for: bar'ium chlo'ride Pronunciation: [key] — Chem. Chem. a colorless, crystalline, water-soluble, poisonous solid, BaCl&multiplydot;2HO, used chiefly in the synthesis of pigments and in the manufacture of rodenticides and pharmaceuticals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. barium carbonate barium chromate Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language