xan·thox·y·lin | \zanˈthäksələ̇n\
plural -s

Definition of xanthoxylin 

1a : a crystalline phenolic ketone C10H12O4 obtained from seeds of a shrubby Chinese tree (Zanthoxylum piperitum)

b : any of several crystalline compounds obtained from the bark of other trees of the genus Zanthoxylum especially : xanthoxyletin

2 or xanthoxylin extract : a purified alcoholic extract of prickly-ash bark

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History and Etymology for xanthoxylin

International Scientific Vocabulary xanthoxyl- (from New Latin Xanthoxylum) + -in

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to reject or criticize sharply

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