Definition of tritomite
: a complex fluosilicate chiefly of calcium, thorium, cerium, yttrium, and containing boron
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 tritomite
German tritomit, from Greek tritomos thrice cut + German -it -ite; from the fact that the crystals leave trihedral cavities in the gangue
Seen and Heard
What made you want to look up tritomite? Please tell us where you read or heard it (including the quote, if possible).