plural -s
: a mineral Na2Ca(SO4)2.4H2O(?) that is a hydrous sulfate of sodium and calcium and occurs as aggregates of minute hairlike crystals

Word History


German wattevillit, from Baron Oscananar de Watteville, 19th century Frenchman + 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!

Dictionary Entries Near Wattevilleite

Cite this Entry

“Wattevilleite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Wattevilleite. Accessed 19 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!