permanent magnet

noun

: a magnet that retains its magnetism after removal of the magnetizing force

Examples of permanent magnet in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Why variable-flux motors matter for EV efficiency A variable flux permanent magnet synchronous motor is designed to adjust the magnetic strength inside the rotor depending on how the motor is operating. Bojan Stojkovski, Interesting Engineering, 14 Dec. 2025 In electric cars specifically, neodymium, dysprosium, and praseodymium are primarily used in the powerful permanent magnets inside the motors that drive EVs. Abhimanyu Ghoshal, New Atlas, 24 Nov. 2025 The facility is expected to produce permanent magnets, a crucial material in modern defense systems like missiles and drones, supply of which had been wrapped up by China. Matthew Martin, semafor.com, 21 Nov. 2025 The rare earth compound is a raw material for permanent magnets. Lisa Kailai Han, CNBC, 14 Nov. 2025 See All Example Sentences for permanent magnet

Word History

First Known Use

1882, in the meaning defined above

Time Traveler
The first known use of permanent magnet was in 1882

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Cite this Entry

“Permanent magnet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/permanent%20magnet. Accessed 21 Dec. 2025.

Kids Definition

permanent magnet

noun
: a magnet that retains its magnetism after removal of the magnetizing force

More from Merriam-Webster on permanent magnet

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