pro·pyl·ene /ˈpropəˌlɪn/ 名詞
Pro·pyl·ene n. Chem. A colorless gaseous hydrocarbon (C3H6) of the ethylene series, having a garlic odor. It occurs in coal gas, and is produced artificially in various ways. Called also propene.
n : a flammable gas obtained by cracking petroleum; used in
organic synthesis [syn: propene]