The Collaborative International Dictionary
Olibene
Olibene \Ol"i*bene\, n. (Chem.) A colorless mobile liquid of a pleasant aromatic odor obtained by the distillation of olibanum, or frankincense, and regarded as a terpene; -- called also conimene.
Wiktionary
olibene
n. An essential oil, principally a mixture of diterpenes, obtained by the distillation of olibanum.