permanent magnet

American  

noun

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

---

permanent magnet British  

noun

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

---

permanent magnet Scientific  

/ pûr′mə-nənt /

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

---

Other Word Forms

• permanent magnetism
  noun

Etymology

Origin of permanent magnet

First recorded in 1820–30

Example Sentences

See Examples For:

permanent magnet

European auto suppliers were already eager to diversify their permanent magnet sources before China’s move, Suleman said, and the April restrictions prompted more interest from customers in other industries.

From The Wall Street Journal ● Nov. 16, 2025

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

From Science Daily ● May 8, 2024

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

From BBC ● Apr. 4, 2024

Tesla initially used induction motors without rare earth permanent magnets, but switched to a permanent magnet motor for the mass-market Model 3 in 2017.

From Reuters ● Nov. 14, 2023

Pass the coil back and forth close to the end of a permanent magnet.

From Electricity for the 4-H Scientist Idaho Agricultural Extension Service Bulletin 396, June, 1962 by Eric B. Wilson