xanthoxylin
noun
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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