The Collaborative International Dictionary
Xanthoxylene
Xanthoxylene \Xan*thox"y*lene\, n. [See Xanthoxylum.] (Chem.) A liquid hydrocarbon of the terpene series extracted from the seeds of a Japanese prickly ash ( Xanthoxylum pipertium) as an aromatic oil.
Wiktionary
xanthoxylene
n. (context archaic chemistry English) A terpene extracted from the seeds of the Japanese prickly ash, ''Xanthoxylum pipertium''.