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The Collaborative International Dictionary
mercuric chloride

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

Wiktionary
mercuric chloride

n. (context inorganic compound English) The salt of mercury and hydrochloric acid, HgCl2

WordNet
mercuric chloride

n. a white poisonous soluble crystalline sublimate of mercury; used as a pesticide or antiseptic or wood preservative [syn: mercury chloride, bichloride of mercury, corrosive sublimate]