miryachit
/mɪriˈɑtʃɪt/ or /mɪriˈɑtʃɪt/ (mir-yah-CHIT)
Definitions
1. noun
A type of extinct volcano in the Caucasus region, characterized by a steep-sided volcanic cone.
“The researchers studied the miryachit formation in the Caucasus mountains to learn more about ancient volcanic activity.”