tainiolite

noun

tai·​ni·​o·​lite

ˈtīnēōˌlīt

plural -s

: a mineral KLiMg₂Si₄O₁₀F₂ consisting of a silicate and fluoride of potassium, lithium, and magnesium of the mica group

Word History

Etymology

tainio- (from Greek tainia band) + -lite; akin to Greek teinein to stretch

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