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[kat-uh-kley-sis, kuh-tak-luh-sis] /ˌkæt əˈkleɪ sɪs, kəˈtæk lə sɪs/
noun, Petrology.
a process of deformation or metamorphism in which the grains of a rock are fractured and rotated.
Origin of cataclasis
< Greek katáklasis refraction, equivalent to katakla-, stem of kataklân to break off, refract, break down (kata- cata- + klân to break) + -sis -sis; compare Norwegian kataklasstruktur (1885)
Related forms
[kat-uh-klas-tik] /ˌkæt əˈklæs tɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for cataclasis


noun (pl) -ses (-siːz)
(geology) the deformation of rocks by crushing and shearing
Derived Forms
cataclastic (ˌkætəˈklæstɪk) adjective
Word Origin
C19: New Latin, from Greek, from cata- + klasis a breaking
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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