British Dictionary definitions for magnetic equator
magnetic equator
noun
1.
an imaginary line on the earth's surface, near the equator, at all points on which there is no magnetic dip Also called aclinic line
magnetic equator in Science
magnetic equator A line connecting all points on the earth's surface at which the magnetic field is parallel to the Earth's surface. A balanced magnetic needle on the magnetic equator stabilizes in a perfectly horizontal position.