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seismometer

[sahyz-mom-i-ter, sahys-] /saɪzˈmɒm ɪ tər, saɪs-/
noun
1.
a seismograph equipped for measuring the direction, intensity, and duration of earthquakes by measuring the actual movement of the ground.
Origin of seismometer
1835-1845
1835-45; seismo- + -meter
Related forms
seismometric
[sahyz-muh-me-trik, sahys-] /ˌsaɪz məˈmɛ trɪk, ˌsaɪs-/ (Show IPA),
seismometrical, adjective
seismometry, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Word Origin and History for seismometer
n.

"instrument for measuring the intensity and motion of earthquakes," 1841, from seismo- + -meter. Originally different from a seismograph but now practically the same thing.

Online Etymology Dictionary, © 2010 Douglas Harper
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seismometer in Science
seismometer
  (sīz-mŏm'ĭ-tər)   
A detecting device that receives seismic impulses. It is the detecting component of a seismograph. See more at seismograph.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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