Propylene
Pronunciation : Pro"pyl*ene
Part of Speech : n.
Etymology : [Cf. F. propyl?ne.] (Chem.)
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913