bathyseism

noun

bathy·​seism

ˈbathə̇ˌsīzəm

: an earthquake of deep origin recordable at seismographic stations the world over

Word History

Etymology

bathy- + -seism

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