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seismometer

[sahyz-mom-i-ter, sahys-]
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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

First recorded in 1835–45; seismo- + -meter
Related formsseis·mo·met·ric [sahyz-muh-me-trik, sahys-] /ˌsaɪz məˈmɛ trɪk, ˌsaɪs-/, seis·mo·met·ri·cal, adjectiveseis·mom·et·ry, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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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

seismometer in Science

seismometer

[sīz-mŏmĭ-tər]
  1. 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.