geomagnetismPronunciation: /dʒiːə(ʊ)ˈmagnɪtɪz(ə)m/Definition of geomagnetism noun [mass noun] the branch of geology concerned with the magnetic properties of the earth. Derivatives geomagneticPronunciation: /-magˈnɛtɪk/ adjective geomagneticallyPronunciation: /-magˈnɛtɪk(ə)li/ adverb geomagnetism in other Oxford dictionaries Definition of geomagnetism in the US English dictionary
