HyperDic: magnetic_needle

English > 1 sense of the expression magnetic needle:
NOUNartifactmagnetic needlea slender magnet suspended in a magnetic compass on a mounting with little friction
English > magnetic needle: 1 sense > noun 1, artifact
MeaningA slender magnet suspended in a magnetic compass on a mounting with little friction; used to indicate the direction of the earth's magnetic pole.
Part ofmagnetic compasscompass based on an indicator (as a magnetic needle) that points to the magnetic north
Broadermagnet(physics) a device that attracts iron and produces a magnetic field

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