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diastrophism

[dahy-as-truh-fiz-uh m] /daɪˈæs trəˌfɪz əm/
noun, Geology
1.
Also called tectonism. the action of the forces that cause the earth's crust to be deformed, producing continents, mountains, changes of level, etc.
2.
any such resulting deformation.
Origin
1880-1885
1880-85; < Greek diastroph() a distortion (see dia-, strophe) + -ism
Related forms
diastrophic
[dahy-uh-strof-ik, -stroh-fik] /ˌdaɪ əˈstrɒf ɪk, -ˈstroʊ fɪk/ (Show IPA),
adjective
diastrophically, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for diastrophism

diastrophism

/daɪˈæstrəˌfɪzəm/
noun
1.
the process of movement and deformation of the earth's crust that gives rise to large-scale features such as continents, ocean basins, and mountains See also orogeny, epeirogeny
Derived Forms
diastrophic (ˌdaɪəˈstrɒfɪk) adjective
Word Origin
C19: from Greek diastrophē a twisting; see dia-, strophe
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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