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.
The Kp index is a global scale that measures geomagnetic activity from 0 (quiet) to 9 (extreme). Daisy Dobrijevic, Space.com, 10 Oct. 2025 Solar storms are expected to increase the chance of geomagnetic activity, according to NOAA’s Space Weather Prediction Center, increasing the potential for another round of auroras at high and possibly mid-latitudes. Valerie Mesa, PEOPLE, 7 Oct. 2025 Influence of geomagnetic disturbances on myocardial infarctions in women and men from Brazil. Lydia Patrick, MSNBC Newsweek, 30 Sep. 2025 Factors like light pollution, moon brightness, and geomagnetic activity affect visibility. Kathleen Wong, USA Today, 26 Sep. 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

Browse Nearby Words

Cite this Entry

“Geomagnetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geomagnetic. Accessed 18 Oct. 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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