geophysicsPronunciation: /ˌdʒiːə(ʊ)ˈfɪzɪks/Translate geophysics | into Italian Definition of geophysics noun [treated as singular] the physics of the earth. Derivatives geophysical adjective geophysicistPronunciation: /-sɪst/ noun geophysics in other Oxford dictionaries Definition of geophysics in the US English dictionary