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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
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. 2015.
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Examples from the Web for diamagnetic
Historical Examples
  • All the tissues of the human body, the blood—though it contains iron—included, were proved to be diamagnetic.

  • Bodies that point equatorially, or are diamagnetic, like Faraday's heavy glass.

    The Boy's Playbook of Science John Henry Pepper
  • The 20th series contains an account of his researches on the universal action of magnetism and diamagnetic bodies.

  • Hence the deflection produced by these metals is due to their diamagnetic, and not to their conductive capacity.

  • So far an identity of action was established between magnetic and diamagnetic bodies.

  • The majority of physicists, however, at the present time, do not believe in the existence of a diamagnetic polarity.

  • The first group is paramagnetic and positive; the corresponding one is diamagnetic and negative.

    Occult Chemistry Annie Besant and Charles W. Leadbeater
  • By a similar arrangement the feeble attractions and repulsions of the diamagnetic force have been made manifest.

    Six Lectures on Light John Tyndall
  • Water is diamagnetic, sulphate of iron is strongly magnetic.

  • That the force which does so is therefore 'distinct in its character and effects from the magnetic and diamagnetic forms of force.

British Dictionary definitions for diamagnetic


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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diamagnetic 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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