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permanent magnet
noun
- a magnet that retains its magnetism after being removed from an external magnetic field.
permanent magnet
noun
- 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.
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Derived Forms
- permanent magnetism, noun
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Other Words From
- permanent magnetism noun
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Word History and Origins
Origin of permanent magnet1
First recorded in 1820–30
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Example Sentences
The amount the armature B is rotated will depend upon the relative effects of the pole of the solenoid and the permanent magnet G.
From Project Gutenberg
The ordinary, permanent magnet, natural or artificial, has little place in the arts.
From Project Gutenberg
Any material that will retain its magnetic influence after removal from the source of magnetism is known as a permanent magnet.
From Project Gutenberg
When this current flows in one direction, its magnetic field assists the field of the permanent magnet, strengthening it.
From Project Gutenberg
This enabled him to employ a very powerful permanent magnet in place of the minute one made of watch-spring.
From Project Gutenberg
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