氯單質 lǜdānzhì molecular chlorine Definitions Defs Origin Strokes Stroke Words Sentences Sents 氯 lǜ noun chlorine chlorine (element Cl); a toxic, yellow-green gas with a strong odor used for bleaching and disinfecting单质 單質 dānzhì simple substance a pure substance consisting of atoms from only one chemical element; also known as an elemental substance