noun py·ro·aurite \ˌpīrōˈȯˌrīt\

Definition of pyroaurite



  1. :  a mineral Mg6Fe2(OH)16CO3.4H2O that is a hydrous basic carbonate of magnesium and iron

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of pyroaurite

Swedish pyroaurit, from pyr- + Latin aurum gold + Swedish -it -ite; from its resemblance to gold after being heated — more at oriole

Seen and Heard

What made you want to look up pyroaurite? Please tell us where you read or heard it (including the quote, if possible).


a brief usually trivial fact

Get Word of the Day daily email!