conimene

from The Collaborative International Dictionary of English v.0.48

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}.
   [1913 Webster] Olid

from The Collaborative International Dictionary of English v.0.48

Conimene \Co"ni*mene\, n. [Etymol. uncertain.] (Chem.)
   Same as {Olibene}.
   [1913 Webster]