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seismism

[sahyz-miz-uh m, sahys-] /ˈsaɪz mɪz əm, ˈsaɪs-/
noun
1.
the natural activity or group of phenomena associated with earthquakes.
Origin
1900-1905
1900-05; seism + -ism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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