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Related to magnetic needle: magnetic compass
A slender bar of magnetized steel usually suspended on a low-friction mounting and used in various instruments, especially in the magnetic compass, to indicate the direction of the earth's magnetic poles.
(General Physics) a slender magnetized rod used in certain instruments, such as the magnetic compass, for indicating the direction of a magnetic field
a slender magnetized steel rod that when adjusted to swing in a horizontal plane, as in a compass, indicates the direction of the earth's magnetic fields.
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|Noun||1.||magnetic needle - a slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole|
magnet - (physics) a device that attracts iron and produces a magnetic field
magnetic compass - compass based on an indicator (as a magnetic needle) that points to the magnetic north