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Definition of Barium chloride
1. Noun. (inorganic compound) The barium salt of hydrochloric acid, BaCl2; it is toxic, and has been used as a rat poison. ¹
¹ Source: wiktionary.com
Medical Definition of Barium chloride
1. Formerly used as a heart tonic and for varicose veins; extremely toxic. (05 Mar 2000)