A cewar ƙamus na Turanci na Oxford, chlorine suna ne da ke nufin wani sinadari mai alamar Cl da lambar atomic 17. Gas ne koren kore mai kauri mai kamshi kuma ana amfani da shi azaman maganin kashe kwayoyin cuta, bleaching agent. , da kuma samar da yawancin sinadarai na masana'antu. Chlorine abu ne mai saurin amsawa kuma an rarraba shi azaman halogen. An gano shi a cikin 1774 ta masanin kimiyar Sweden Carl Wilhelm Scheele.