Alleghanyite

noun

Al·​le·​gha·​ny·​ite

ˌaləˈgānēˌīt

plural -s

: a mineral consisting of a pink basic silicate of manganese Mn₅Si₂O₈(OH)₂

Word History

Etymology

Alleghany county, North Carolina + English -ite

First Known Use

circa 1939, in the meaning defined above

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!