Petrochelidon

noun

Pet·​ro·​chel·​i·​don

ˌpe‧trōˈkeləˌdän

: a genus of swallows consisting of the American cliff swallows

Word History

Etymology

New Latin, from petr- + Greek chelidōn swallow

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