noun sen·ar·mon·tite \ˌsenə(r)ˈmänˌtīt\

Definition of senarmontite



  1. :  a colorless or grayish mineral Sb2O3 consisting of native antimony trioxide and occurring in octahedral crystals or in masses

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 senarmontite

Henri de Sénarmont †1862 French mineralogist + English -ite

Seen and Heard

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


feeling or affected by lethargy

Get Word of the Day daily email!