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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There are three primary hypotheses for how birds might sense Earth’s geomagnetic field. ArsTechnica, 28 May 2026 These measurements enabled scientists to identify sudden changes linked to the Pacific reversal and a geomagnetic disturbance known as the 2017 geomagnetic jerk. Atharva Gosavi, Interesting Engineering, 25 May 2026 While visibility farther south is less likely, stronger geomagnetic fluctuations can occasionally push the aurora farther down than forecast, especially in rural areas with dark skies and minimal light pollution. Valerie Mesa, PEOPLE, 18 May 2026 Modelling suggests that most of the solar material will miss us, passing north of Earth, but even a glancing blow from any one of these CMEs can be enough to stir geomagnetic activity and enhance aurora shows. Daisy Dobrijevic, Space.com, 18 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 31 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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