geomagnetic

adjective

geo·​mag·​net·​ic ˌjē-ō-mag-ˈne-tik How to pronounce geomagnetic (audio)
: of or relating to terrestrial magnetism
geomagnetically
ˌjē-ō-mag-ˈne-ti-k(ə-)lē How to pronounce geomagnetic (audio)
adverb
geomagnetism
ˌjē-ō-ˈmag-nə-ˌti-zəm How to pronounce geomagnetic (audio)
noun

Examples of geomagnetic 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.
With multiple CMEs potentially reaching Earth in quick succession, forecasting exactly when the geomagnetic activity will intensify if particularly challenging. — Daisy Dobrijevic, Space.com, 8 Oct. 2026 When geomagnetic activity becomes stronger, the aurora can sometimes be seen farther south than usual. — ABC News, 8 Oct. 2026 If geomagnetic activity strengthens to G2, the auroral oval could expand farther south, potentially allowing states including Colorado, Illinois, Indiana, Iowa, Nebraska, New York, Ohio, Oregon, Pennsylvania and Wyoming to witness the display. — Michele Laufik, Martha Stewart, 8 Oct. 2026 This might be because the Integratron was apparently built on a geomagnetic vortex. — Anthony Solorzano, Los Angeles Times, 1 Sep. 2026 See All Example Sentences for geomagnetic

Word History

First Known Use

1904, in the meaning defined above

Time Traveler
The first known use of geomagnetic was in 1904

Phrases Containing geomagnetic

Rhymes for geomagnetic

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Browse Nearby Words

geom
geomagnetic
geomagnetic equator
See all Nearby Words

Cite this Entry

“Geomagnetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geomagnetic. Accessed 14 Oct. 2026.

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Kids Definition

geomagnetic

adjective
geo·​mag·​net·​ic ˌjē-ō-mag-ˈnet-ik How to pronounce geomagnetic (audio)
: of or relating to the magnetism of the earth
geomagnetism
-ˈmag-nə-ˌtiz-əm How to pronounce geomagnetic (audio)
noun
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