tonalite

noun

to·​nal·​ite

ˈtōnᵊlˌīt

plural -s

1

: a granular igneous rock consisting of quartz, andesine, and small amounts of orthoclase

2

: quartz-diorite

Word History

Etymology

German tonalit, from Tonale (Pass) in the Lombard Alps + German -it -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