Definition of palo santo
: any of several South American trees esteemed locally for medicinal or other special properties; especially : a tree (Bulnesia sarmienti) of the family Zygophyllaceae occurring in dry interior regions of Argentina and Paraguay and having a resinous heartwood used for incense — see guaiac wood
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of palo santo
American Spanish, literally, holy tree
Seen and Heard
What made you want to look up palo santo? Please tell us where you read or heard it (including the quote, if possible).