jacu

noun

ja·​cu

jəˈkü

plural -s

: a South American guan (especially Penelope obscura jacqúaçu)

Word History

Etymology

Portuguese jacu, jacú, from Tupi jacú

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now