arrojadite

noun

ar·​ro·​ja·​dite

ˌarəˈjäˌdīt

plural -s

: a mineral Na₂(Fe, Mn)₅(PO₄)₄ consisting of a phosphate of sodium, iron, and manganese occurring in Brazil as dark green monoclinic masses

Word History

Etymology

Portuguese arrojadita, from Miguel Arrojado Lisbôa 20th century Brazilian geologist + Portuguese -ita -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