Definition of margarosanite
: a mineral PbCa2(SiO3)3 consisting of a lead calcium silicate occurring in colorless lamellar 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.
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 margarosanite
Greek margaron pearl + sanis board + English -ite; from its pearly luster and lamellar structure; probably akin to Greek sathē penis, sainein to wag the tail, Old English thūma thumb — more at thumb
Seen and Heard
What made you want to look up margarosanite? Please tell us where you read or heard it (including the quote, if possible).