seismometer

noun

seis·​mom·​e·​ter sīz-ˈmä-mə-tər How to pronounce seismometer (audio)
sīs-
: a seismograph measuring the actual movements of the ground (as on the earth or the moon)
seismometric adjective

Examples of seismometer 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.
The science payload to be landed there includes seismometers, a drill to allow emplacement of heat flow and electrical conductivity probes, and instruments to study the magnetic field and surface weathering. Richard Tribou, The Orlando Sentinel, 1 Jan. 2026 Then Addison Barger set off seismometers across southern Ontario with a gargantuan grand slam to push Toronto up 9-2. Fabian Ardaya, New York Times, 25 Oct. 2025 Atterholt said the fiber optic sensing technology would not supplant traditional seismometers, but would supplement what data already exists and would be less expensive than installing seismometers on the seafloor. Evan Bush, NBC news, 25 Sep. 2025 In fact, China’s upcoming Chang’e-8 mission (2029) will carry a lunar seismometer to the south pole. Christopher McFadden, Interesting Engineering, 21 Sep. 2025 See All Example Sentences for seismometer

Word History

First Known Use

1841, in the meaning defined above

Time Traveler
The first known use of seismometer was in 1841

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Cite this Entry

“Seismometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seismometer. Accessed 5 Jan. 2026.

Kids Definition

seismometer

noun
seis·​mom·​e·​ter sīz-ˈmäm-ət-ər How to pronounce seismometer (audio)
sīs-
: a seismograph that measures the actual movements of the ground

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