permanent magnet

noun

a magnet that retains its magnetism after being removed from an external magnetic field.

permanent magnet

a magnet, often of steel, that retains its magnetization after the magnetic field producing it has been removed

permanent magnet

/ pûr′mə-nənt /

A piece of ferromagnetic material that retains its magnetism after it has been magnetized.

First recorded in 1820–30

The amount the armature B is rotated will depend upon the relative effects of the pole of the solenoid and the permanent magnet G.

The ordinary, permanent magnet, natural or artificial, has little place in the arts.

Any material that will retain its magnetic influence after removal from the source of magnetism is known as a permanent magnet.

When this current flows in one direction, its magnetic field assists the field of the permanent magnet, strengthening it.

This enabled him to employ a very powerful permanent magnet in place of the minute one made of watch-spring.

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