Either of the two points at which the axis of the earth's magnetic field, approximated by a simple dipole with an axis running through the centre of the earth, intersects the surface.
Origin
1930s.
Definition of geomagnetic pole in US English:
geomagnetic pole
noun
Either of the two points at which the axis of the earth's magnetic field, approximated by a simple dipole with an axis running through the centre of the earth, intersects the surface.