permanent magnet

American  

noun

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

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permanent magnet British  

noun

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

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permanent magnet Scientific  

/ pûr′mə-nənt /

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

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Other Word Forms

• permanent magnetism noun

Etymology

Origin of permanent magnet

First recorded in 1820–30

Example Sentences

The problem: Even at the new factory’s initial planned capacity of 2,000 metric tons of permanent magnet material, the plant will produce a fraction of what analysts estimate European manufacturers need.

From The Wall Street Journal

Friday’s talks are mainly aimed at pressing China to approve more export licenses for rare earths and permanent magnets after Beijing imposed new restrictions earlier this month.

From The Wall Street Journal

Breaking Beijing’s chokehold on rare-earth supply chains requires resolving three bottlenecks: the concentration of heavy rare-earth feedstock in Myanmar and China; catching up in rare-earth processing; and rapidly scaling permanent magnet production.

From The Wall Street Journal

China, the dominant producer of rare earths, imposed new export restrictions recently of rare earths and permanent magnets.

From The Wall Street Journal

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

From The Wall Street Journal