聚氯乙烯 Traditional form: 聚氯乙烯 Pinyin (reading): jùlüyǐxī Definitions: polyvinyl chloride (PVC) Characters: 聚 - to assemble, to collect, to meet 氯 - chlorine 乙 - second; 2nd heavenly stem 烯 - alkene Traditional characters: 聚 - to assemble, to collect, to meet 氯 - chlorine 乙 - second; 2nd heavenly stem 烯 - alkene