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cataclastic

American  
[kat-uh-klast-ik] / ˌkæt əˈklæst ɪk /

adjective

  1. Petrology. having a fragmented structure produced by cataclasis, typically at fault lines.

cataclastic Scientific  
/ kăt′ə-klăs′tĭk /

  1. Relating to rocks consisting of cemented fragments that originate from the mechanical breakdown of rock associated with plate tectonic processes. Cataclastic rocks form in regions that have undergone intense metamorphism and are associated with other metamorphic features such as folds and faults. They typically contain bent, broken, and granular minerals.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.