ˌkad.əˈklāsə̇s; kəˈtakləsə̇s, kaˈ- noun
( plural cataclases -ˌsēz)
Etymology: New Latin, from Greek kataklasis, from kata- cata- + klasis breaking — more at -clasia
: the crushing or fracturing of rocks and minerals during metamorphism — compare breccia , crush breccia