geomagnetic

adjective

geo·​mag·​net·​ic ˌjē-ō-mag-ˈne-tik How to pronounce geomagnetic (audio)
: of or relating to terrestrial magnetism
geomagnetically adverb
geomagnetism noun

Examples of geomagnetic in a Sentence

Recent Examples on the Web
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October is also a peak month for displays of the Northern Lights; if geomagnetic activity is high, some observers at northern latitudes may also see the comet amid auroras. Jamie Carter, Forbes.com, 10 Sep. 2025 The shape swells and moves further south during periods of strong geomagnetic activity, like last year’s May and October shows, where the Lights danced across nearly every state. Stephanie Vermillion, Outside, 2 Sep. 2025 Subsequent research has gone deeper into chemical or neurological aspects of olfactory imprinting and geomagnetic navigation, which seems to aid salmon homing at longer distances. Greg Uyeno, JSTOR Daily, 27 Aug. 2025 The aurora is one manifestation of geomagnetic activity or geomagnetic storms. Anna Commander, MSNBC Newsweek, 18 Aug. 2025 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

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Cite this Entry

“Geomagnetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geomagnetic. Accessed 29 Sep. 2025.

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 noun
Last Updated: - Updated example sentences
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