ardealite

noun

ar·​de·​al·​ite

ˌärdēˈäˌlīt

plural -s

: a mineral Ca₂H(PO₄)(SO₄)·4H₂O consisting of a hydrous acid calcium phosphate-sulfate

Word History

Etymology

German ardealit, from Ardeal Transylvania, region of Romania + German -it -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!