|pälē, -lə̇+ noun
Etymology: International Scientific Vocabulary poly- + terpene
: a natural or synthetic polymer (C 5 H 8 ) x of a terpene hydrocarbon: as
a. : rubber hydrocarbon
b. : a thermoplastic resin or viscous liquid obtained by polymerization of turpentine or a nopinene fraction by means of a catalyst (as aluminum chloride) and used chiefly in adhesives and rubber goods