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seismograph

noun

seis·​mo·​graph ˈsīz-mə-ˌgraf How to pronounce seismograph (audio)
ˈsīs-
: an apparatus to measure and record vibrations within the earth and of the ground
seismographer noun
seismographic adjective
seismography noun

Examples of seismograph in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
That spark turned into a tradition that now sees 66,000 people jumping together at every home game, shaking Lane Stadium hard enough to rattle seismographs. Christina Daves, Southern Living, 22 Nov. 2025 Looking ahead, China plans to launch its Chang’e-7 lunar probe around 2026, carrying instruments such as a seismograph to study the moon’s internal structure. Christopher McFadden, Interesting Engineering, 5 Oct. 2025 Stock image of a seismograph machine needle drawing a red line on graph paper depicting seismic and earthquake activity. Anna Skinner, MSNBC Newsweek, 25 Aug. 2025 Though all six of the Apollo landing missions left behind instrument packages that included seismographs, these were of very limited capability and all were switched off in 1977 as their nuclear power sources began to fail. David Szondy august 09, New Atlas, 9 Aug. 2025 See All Example Sentences for seismograph

Word History

Etymology

International Scientific Vocabulary

First Known Use

1858, in the meaning defined above

Time Traveler
The first known use of seismograph was in 1858

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Cite this Entry

“Seismograph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seismograph. Accessed 30 Nov. 2025.

Kids Definition

seismograph

noun
seis·​mo·​graph ˈsīz-mə-ˌgraf How to pronounce seismograph (audio)
ˈsīs-
: a device to measure and record vibrations of the earth
seismographic adjective
seismography noun

More from Merriam-Webster on seismograph

Last Updated: - Updated example sentences
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