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Medical Definition of Ethanedinitrile
1. A compound of two cyano radicals, NC-CN; its highly toxic compounds (general formula X-CN, where X is a halogen) are used in chemical syntheses and as tissue preservatives. Synonym: ethanedinitrile. Cyanogen chloride, CNCl;a highly volatile liquid; a systemic poison used as a warning agent in fumigation with hydrogen cyanide. (05 Mar 2000)