Chloride \Chlo"ride\, n. (Chem.) A binary compound of chlorine with another element or radical; as, chloride of sodium (common salt). {Chloride of ammonium}, sal ammoniac. {Chloride of lime}, bleaching powder; a grayish white substance, {CaOCl2}, used in bleaching and disinfecting; -- called more properly {calcium hypochlorite}. See {Hypochlorous acid}, under {Hypochlorous}. {Mercuric chloride}, corrosive sublimate.