noun stish·ov·ite \ˈstishəˌvīt\

Definition of stishovite



  1. :  a dense tetragonal mineral SiO2 consisting of silicon dioxide that is a polymorph of quartz and that is formed under great pressure

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 stishovite

Sergeĭ M. Stishov, 20th century Russian mineralogist + English -ite

Seen and Heard

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


to help become familiar with something

Get Word of the Day daily email!