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cataclasis

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cat⋅a⋅cla⋅sis

[kat-uh-kley-sis, kuh-tak-luh-sis]
–noun Petrology.
a process of deformation or metamorphism in which the grains of a rock are fractured and rotated.

Origin:
< Gk katáklasis refraction, equiv. to katakla-, s. of kataklân to break off, refract, break down (kata- cata- + klân to break) + -sis -sis; cf. Norw kataklasstruktur (1885)


cat⋅a⋅clas⋅tic [kat-uh-klas-tik] , adjective
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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