geomagnetic

1 of 2

adjective

geo·​mag·​net·​ic ˌjē-ō-mag-ˈne-tik 

: of or relating to terrestrial magnetism

geomagnetically

ˌjē-ō-mag-ˈne-ti-k(ə-)lē 

adverb

geomagnetism

ˌjē-ō-ˈmag-nə-ˌti-zəm 

noun

geomagnetism

2 of 2

noun

geo·​magnetism ¦jē(ˌ)ō + 

: terrestrial magnetism

Examples of geomagnetic in a Sentence

Recent Examples on the Web

Adjective

This latter requirement is contingent on very strong or extreme geomagnetic activity. — Daisy Dobrijevic, Space.com, 10 Aug. 2026

The darkest hours between late evening and early morning will offer the best opportunity for viewing, though NOAA’s current forecast calls for geomagnetic activity to remain at or below a G1 storm level. — Valerie Mesa, PEOPLE, 30 July 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

Word History

Etymology

Noun

ge- + magnetism

First Known Use

Adjective

1904, in the meaning defined above

Phrases Containing geomagnetic

• geomagnetic storm

Rhymes for geomagnetic

• alphabetic
• anaesthetic
• anesthetic
• antithetic
• apathetic
• arithmetic
• cybernetic
• diabetic
• dietetic
• diuretic
• empathetic
• energetic

Kids Definition

geomagnetic

adjective

geo·​mag·​net·​ic ˌjē-ō-mag-ˈnet-ik 

: of or relating to the magnetism of the earth

geomagnetism

-ˈmag-nə-ˌtiz-əm 

noun