Definition of zanthoxylum
1a capitalized : a genus of widely distributed shrubs or trees (family Rutaceae) having odd-pinnate leaves, small greenish flowers with 2 to 5 pistils, and 2-valved fleshy capsules b plural -s : any plant of the genus Zanthoxylum
2 less commonly xanthoxylum plural -s : the dried bark of prickly ash or hercules'-club formerly used as a diaphoretic and stimulant
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of zanthoxylum
New Latin, irregular from xanth- + -xylum
Seen and Heard
What made you want to look up zanthoxylum? Please tell us where you read or heard it (including the quote, if possible).