permanent magnet
- 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
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
permanent magnet
- a magnet, often of steel, that retains its magnetization after the magnetic field producing it has been removed
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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
[pûr′mə-nənt]
- 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.