Definition of tuno
1 : a Central American tree (Castilloa fallax) closely related to the Central American rubber tree but producing a nonelastic rubber
2 less commonly tuno gum : the resinous gum of the tuno tree
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 tuno
American Spanish, probably from Miskito túno
Seen and Heard
What made you want to look up tuno? Please tell us where you read or heard it (including the quote, if possible).