geomagnetism

[jee-oh-mag-ni-tiz-uh m]

noun

the earth's magnetic field and associated phenomena.

the branch of geophysics that studies such phenomena.

Origin of geomagnetism

First recorded in 1935–40; geo- + magnetism

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for geomagnetism

geomagnetism

noun

the magnetic field of the earth

the branch of physics concerned with this

Derived Formsgeomagnetic (ˌdʒiːəʊmæɡˈnɛtɪk), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

geomagnetism in Science

geomagnetism

[jē′ō-măg′nĭ-tĭz′əm]

The magnetic properties of the Earth and its atmosphere.

The study of these properties.