烯 xī 🔊 alkene; -ene (suffix used in chemical names) 11 strokes + Review this word Meanings xī (chemistry) alkene; -ene (suffix used in chemical names) Words with 烯 乙烯 yǐ xī ethylene 聚丙烯 jù bǐng xī polypropylene 烯烃 xī tīng alkene 聚乙烯 jù yǐ xī polythene 丙烯 bǐng xī propylene C3H6 苯乙烯 běn yǐ xī styrene 丁二烯 dīng èr xī butadiene C4H6 聚氯乙烯 jù lǜ yǐ xī polyvinyl chloride (PVC) 聚苯乙烯 jù běn yǐ xī polystyrene 丙烯腈 bǐng xī jīng acrylo-nitrile 氯乙烯 lǜ yǐ xī vinyl chloride (chloroethene C2H3Cl) 异戊二烯 yì wù èr xī isoprene