fersmite

noun

fers·​mite

-ˌmīt

plural -s

: a mineral (Ca,Ce)(Cb,Ti)₂(O,F)₆ consisting of an oxide and fluoride of calcium and columbium with cerium and titanium

Word History

Etymology

Russian fersmit, from A. E.Fersman + Russian -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