chloride n 1: any compound containing a chlorine atom 2: any salt of hydrochloric acid (containing the chloride ion)
Chloride \Chlo"ride\, n. (Chem.) A binary compound of chlorine with another element or radical; as, chloride of sodium (common salt). [1913 Webster] {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. [1913 Webster]