noun di·mor·phite \-fīt\

Definition of dimorphite



  1. :  a mineral As4S3 consisting of arsenic sulfide originally thought to be one of two dimorphous substances

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 dimorphite

obsolete English dimorphine dimorphite (from Italian dimorfina, from dimorf- —from Greek dimorphos —+ -ina -ine) + English -ite

Seen and Heard

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


a rounded knoll or a ridge of ice

Get Word of the Day daily email!