Main Entry: oleo·res·in

Pronunciation: \ˌō-lē-ō-ˈre-z^ən\

Function: noun

Etymology: International Scientific Vocabulary

Date: circa 1846

1 : a natural plant product (as copaiba) containing chiefly essential oil and resin; especially : turpentine 1b
2 : a preparation consisting essentially of oil holding resin in solution

— oleo·res·in·ous \-ˈre-z^ən-əs, -ˈrez-nəs\ adjective