microperthite

noun

mi·​cro·​perthite

"+

: a perthite the structure of which can be discerned only with the microscope compare cryptoperthite

microperthitic

"+

adjective

Word History

Etymology

German mikroperthit, from mikr- micr- + perthit perthite, from English perthite

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now