Definition of ilsemannite
: a mineral Mo3O8·nH2O(?) consisting of black, blue-black, or blue earthy massive hydrous oxide or perhaps sulfate of molybdenum
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.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of ilsemannite
German ilsemannit, from J. C. Ilsemann †1822 German mining commissioner + German -it -ite
Seen and Heard
What made you want to look up ilsemannite? Please tell us where you read or heard it (including the quote, if possible).