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permanent magnet

noun
1.
a magnet that retains its magnetism after being removed from an external magnetic field.
Origin
1820-1830
1820-30
Related forms
permanent magnetism, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for permanent-magnetism

permanent magnet

noun
1.
a magnet, often of steel, that retains its magnetization after the magnetic field producing it has been removed
Derived Forms
permanent 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
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permanent-magnetism in Science
permanent magnet
  (pûr'mə-nənt)   
A piece of ferromagnetic material that retains its magnetism after it has been magnetized.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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