-
Trending Now:
More Trending:
- beleaguer scaramouch non sequitur admiral's mast calumny
- ALL
Definition of blueschist
blueschists
geology : a metamorphic rock that is formed under high pressure and low temperature and is characterized by the presence of glaucophane Also radiometric ages of blueschists from the same regions cluster around 400-500 Myr. — T. Nakajima et al., Nature, 19 July 1990 At this depth, where the pressure is 15 to 20 kilobars and temperatures reach about 500 degrees C, rocks called blueschists and eclogites form. — Ian Anderson, New Scientist, 29 Mar. 1997
Explore M-W
There's more!
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!
First Known Use of blueschist
1789
Seen and Heard
What made you want to look up blueschist? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!