permanent magnet

noun

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

permanent magnet

noun

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

permanent magnet

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

Other Word Forms

• permanent magnetism noun

Word History and Origins

Origin of permanent magnet¹

First recorded in 1820–30

Example Sentences

“Rare earths and permanent magnets are key elements for practically everything with any digital element in it,” Sefcovic said.

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They are crucial for making permanent magnets, which are found in everything from smartphones to MRI scanners and electric motors.

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The permanent magnets are the most expensive part of the technology, Mr Sirman reports.

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Heavy rare earths are used in many military fields such as missiles, radar, and permanent magnets.

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And, at present, China massively dominates global permanent magnet production, with more than 90% market share, external.

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