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[sahyz-mol-uh-jee, sahys-] /saɪzˈmɒl ə dʒi, saɪs-/
the science or study of earthquakes and their phenomena.
Also called seismography.
Origin of seismology
1855-60; seismo- + -logy
Related forms
[sahyz-muh-loj-ik, sahys-] /ˌsaɪz məˈlɒdʒ ɪk, ˌsaɪs-/ (Show IPA),
seismological, adjective
seismologically, adverb
seismologist, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Historical Examples
British Dictionary definitions for seismology


the branch of geology concerned with the study of earthquakes and seismic waves
Derived Forms
seismologic (ˌsaɪzməˈlɒdʒɪk), seismological, adjective
seismologically, adverb
seismologist, noun
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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Word Origin and History for seismology

1852, from seismo- + -logy. Related: Seismological (1850).

Online Etymology Dictionary, © 2010 Douglas Harper
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seismology in Science
The scientific study of earthquakes and of the internal structure of the Earth. It includes the study of the origin, geographic distribution, effects, and possible prediction of earthquakes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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seismology in Culture
seismology [(seyez-mol-uh-jee)]

The branch of science devoted to the study of seismic waves and the information they provide about the structure of the interior of the Earth.

Note: Our knowledge of the properties of the crust, the mantle, and the core comes from this field.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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