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The Collaborative International Dictionary
mercury perchloride

mercury bichloride \mercury bichloride\ n. the compound ( HgCl2) consisting of two atoms of chlorine united with one atom of mercury. Also called bichloride of mercury, mercuric chloride, corrosive sublimate, and mercury perchloride. It is used as ``a topical antiseptic and disinfectant for inanimate objects''.
--Stedman's 25th