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
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.
Elevated geomagnetic activity could continue into May 17 as the fast stream of solar wind continues to buffet Earth's magnetic field. Daisy Dobrijevic, Space.com, 15 May 2026 This time around, geomagnetic activity is expected to peak at different times across the three days, according to the forecast. Mary Walrath-Holdridge, USA Today, 15 May 2026 Tonight’s aurora chances could ramp up late on Tuesday, May 12, and spill into the early hours of Wednesday, May 13, if the upcoming CME ends up brushing Earth just enough to shake up geomagnetic conditions. Valerie Mesa, PEOPLE, 12 May 2026 This gives you ample time for geomagnetic activity to align with at least relatively clear skies, which are both required for an aurora show. Stephanie Vermillion, Travel + Leisure, 7 May 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

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Cite this Entry

“Geomagnetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geomagnetic. Accessed 17 May. 2026.

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
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