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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.
Derived Forms
- permanent magnetism, noun
Other Words From
- permanent magnetism noun
Word History and Origins
Origin of permanent magnet1
Example Sentences
And, at present, China massively dominates global permanent magnet production, with more than 90% market share, external.
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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