tectonite

noun

tec·​ton·​ite

-ˌnīt

plural -s

: a rock that has undergone differential movement of its component parts and in consequence still retains a coherent fabric

Word History

Etymology

International Scientific Vocabulary tecton- + -ite

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