Cedrene

Ce"drene (sē"drēn), n. (Chem.) A rich aromatic oil, C₁₅H₂₄, extracted from oil of red cedar, and regarded as a polymeric terpene; also any one of a class of similar substances, as the essential oils of cloves, cubebs, juniper, etc., of which cedrene proper is the type. [Written also cedren.]