geomagnetism

[ jee-oh-mag-ni-tiz-uhm ]

noun

1. the earth's magnetic field and associated phenomena.
2. the branch of geophysics that studies such phenomena.

geomagnetism

/ ˌdʒiːəʊmæɡˈnɛtɪk; ˌdʒiːəʊˈmæɡnɪˌtɪzəm /

noun

1. the magnetic field of the earth
2. the branch of physics concerned with this

geomagnetism

/ jē′ō-măg′nĭ-tĭz′əm /

1. The magnetic properties of the Earth and its atmosphere.
2. The study of these properties.

Derived Forms

• geomagnetic, adjective

Word History and Origins

Origin of geomagnetism¹

First recorded in 1935–40; geo- + magnetism