Breguet hairspring

noun

Bre·​guet hairspring

brəˈgā-

: a flat spiral hairspring whose last outer coil is raised and curved back to a point near the center

Word History

Etymology

after Abraham L. Bréguet †1823 French horologist

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