Terpene
Pronunciation : Ter"pene
Part of Speech : n.
Etymology : [See Turpentine.] (Chem.)
Definition : Defn: Any one of a series of isomeric hydrocarbons of pleasant aromatic odor, occurring especially in coniferous plants and represented by oil of turpentine, but including also certain hydrocarbons found in some essential oils.
Source : Webster's Unabridged Dictionary, 1913