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[dahy-uh-mag-net-ik] /ˌdaɪ ə mægˈnɛt ɪk/
adjective, Physics.
of or relating to a class of substances, as bismuth and copper, whose permeability is less than that of a vacuum: in a magnetic field, their induced magnetism is in a direction opposite to that of iron.
Origin of diamagnetic
First recorded in 1840-50; dia- + magnetic
Related forms
diamagnetically, adverb
[dahy-uh-mag-ni-tiz-uh m] /ˌdaɪ əˈmæg nɪˌtɪz əm/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for diamagnetism


the phenomenon exhibited by substances that have a relative permeability less than unity and a negative susceptibility. It is caused by the orbital motion of electrons in the atoms of the material and is unaffected by temperature Compare ferromagnetism, paramagnetism


of, exhibiting, or concerned with diamagnetism
Derived Forms
diamagnetically, adverb
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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diamagnetism in Science
The property of being repelled by both poles of a magnet. Most substances commonly considered to be nonmagnetic, such as water, are actually diamagnetic. Though diamagnetism is a very weak effect compared with ferromagnetism and paramagnetism, it can be used to levitate objects. Compare ferromagnetism, paramagnetism. See also Lenz's law.

diamagnetic adjective (dī'ə-māg-nět'ĭk)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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