氯乙烯 lǜyǐxī vinyl chloride, chloroethene Origin Definitions Defs 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乙烯 yǐxī noun ethylene; ethene a colorless flammable gas (C2H4) derived from petroleum; used as a chemical feedstock for plastics and synthetic fibers, and for welding and cutting metal