forsterite

noun

for·​ster·​ite

ˈfȯ(r)stəˌrīt

plural -s

: a mineral consisting of magnesian olivine

specifically : magnesium silicate Mg₂SiO₄ constituting the essential component of some refractories

Word History

Etymology

Johann R. Forster †1798 German traveler + English -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