senaite

noun

sena·​ite

ˈsenəˌīt,

ˈsān-

plural -s

: a mineral (Fe,Mn,Pb)TiO₃ consisting of an oxide of iron, manganese, lead, and titanium occurring in black rounded crystals and fragments in the diamond-bearing sands of Minas Geraes, Brazil

Word History

Etymology

Joachim da Costa Sena, 19th century Brazilian mineralogist + English -ite

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!