micrinite

noun

mi·​cri·​nite

ˈmīkrəˌnīt

plural -s

: an opaque structureless material that is the dominant constituent of durain

Word History

Etymology

micr- + -inite (as in fusinite)

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