[ sahyz-mom-i-ter, sahys- ]
/ saɪzˈmɒm ɪ tər, saɪs- /


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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for seismometer

Word Origin and History for seismometer



"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

Science definitions for seismometer


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