Cedrene \Ce"drene\ (s[=e]"dr[=e]n), 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}.]
[1913 Webster]