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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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

permanent magnet

/ pûrmə-nənt /

  1. 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

  • permanent magnetism noun
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Word History and Origins

Origin of permanent magnet1

First recorded in 1820–30
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Example Sentences

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

From BBC

They are workhorses of applications such as lasers, permanent magnets in wind turbines and electric vehicles, X-ray screens and even cancer-fighting medicines.

Afterward, the researchers collected the robots with a permanent magnet and used ultrasound to detach the bacteria clinging to them.

Green power generation, electric transportation, and other high-tech industries rely heavily on high-performance permanent magnets, among which the Nd-Fe-B magnets are the strongest and most in demand.

These two critical minerals are used to manufacture permanent magnets found in computer hard drives and wind turbines, among other uses.

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