geomagnetic

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

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.
Still, at barely a mile long, there was little potential for geomagnetic activity to make its presence known to operators. — Mike McRae 15, New Atlas, 16 Oct. 2026 March and September are particularly good months for aurora hunting, thanks to a seasonal boost in geomagnetic activity around the spring and autumn equinoxes. — Daisy Dobrijevic, Space.com, 16 Oct. 2026 When geomagnetic activity becomes stronger, the aurora can sometimes be seen farther south than usual. — ABC News, 8 Oct. 2026 If geomagnetic activity strengthens to G2, the auroral oval could expand farther south, potentially allowing states including Colorado, Illinois, Indiana, Iowa, Nebraska, New York, Ohio, Oregon, Pennsylvania and Wyoming to witness the display. — Michele Laufik, Martha Stewart, 8 Oct. 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

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 20 Oct. 2026.

Copy Citation

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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of compunction

See Definitions and Examples »

Popular in Grammar & Usage

See More

'Affect' vs. 'Effect'

Merriam-Webster’s Great Big List of Words You Love to Hate

The Exceptions of '-s' and '-es' Plurals

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

Did 'orange' the fruit or the color come first?
See More

Popular

See More

'Affect' vs. 'Effect'

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
artwork of illustrated limes with the text limes and smile with an arrow connecting the two words
Quiz: Spot the Anagram! Scramble these words to find new words with the e...
See All