palaeomagnetism

palaeomagnetism |ˌpalɪə (ʊ )ˈmagnɪtɪz (ə )m, ˌpeɪ - |(US paleomagnetism ) ▶noun [ mass noun ] the branch of geophysics concerned with the magnetism in rocks that was induced by the earth's magnetic field at the time of their formation. DERIVATIVES palaeomagnetic |-magˈnɛtɪk |adjective