geomagnetic

1 of 2

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

geomagnetism

2 of 2

noun

geo·​magnetism ¦jē(ˌ)ō + How to pronounce geomagnetism (audio)
: terrestrial magnetism

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.
Adjective
As a response, NOAA currently expects the planetary Kp index (a measure of geomagnetic activity) to peak at 5. — Valerie Mesa, PEOPLE, 11 Aug. 2026 This latter requirement is contingent on very strong or extreme geomagnetic activity. — Daisy Dobrijevic, Space.com, 10 Aug. 2026 Until then, scientists generally associated major space-weather disturbances with periods of intense solar and geomagnetic activity. — Rupendra Brahambhatt, Interesting Engineering, 21 June 2026 What This Means For Aurora Watchers Aurora watchers at higher latitudes may have a modest chance of seeing activity, particularly during any unsettled or active geomagnetic periods. — Jamie Carter, Forbes.com, 18 June 2026 See All Example Sentences for geomagnetic

Word History

Etymology

Noun

ge- + magnetism

First Known Use

Adjective

1904, in the meaning defined above

Time Traveler
The first known use of geomagnetic was in 1904

Phrases Containing geomagnetic

Rhymes for geomagnetic

See All Rhymes for geomagnetic

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 25 Aug. 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
Last Updated: - Updated example sentences
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