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permanent magnet

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

First recorded in 1820–30
Related formspermanent magnetism, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for permanent magnet

permanent magnet

noun
  1. a magnet, often of steel, that retains its magnetization after the magnetic field producing it has been removed
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Derived Formspermanent magnetism, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

permanent magnet in Science

permanent magnet

[pûrmə-nənt]
  1. A piece of ferromagnetic material that retains its magnetism after it has been magnetized.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.