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

/ pûr′mə-nənt /

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

Derived Forms

• permanent magnetism, noun

Other Words From

• permanent magnetism noun

Word History and Origins

Origin of permanent magnet¹

First recorded in 1820–30

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.

From Science Daily

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

From Science Daily

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.

From Science Daily

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

From Science Daily