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permanent magnetism

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permanent magnet

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

Origin:
1820–30


permanent magnetism, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Science Dictionary
permanent magnet   (pûr'mə-nənt)  Pronunciation Key 
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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