kotoite

noun

ko·​to·​ite

ˈkōtəˌwīt

plural -s

: a mineral Mg₃(BO₃)₂ consisting of a borate of magnesium

Word History

Etymology

German kotoit, from Bundjiro Koto †1935 Japanese geologist and petrographer + 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