Xanthoxylum

Xan·thox'y·lum noun [ New Latin , from Greek xanqo`s yellow + xy`lon wood.] (Botany) A genus of prickly shrubs or small trees, the bark and rots of which are of a deep yellow color; prickly ash. » The commonest species in the Northern United States is Xant...
Found on http://www.encyclo.co.uk/webster/X/1

Xanthoxylum

• (n.) A genus of prickly shrubs or small trees, the bark and rots of which are of a deep yellow color; prickly ash.
Found on http://thinkexist.com/dictionary/meaning/xanthoxylum/
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