[ 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

di·a·mag·net·i·cal·ly, adverbdi·a·mag·net·ism [dahy-uh-mag-ni-tiz-uh m] /ˌdaɪ əˈmæg nɪˌtɪz əm/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for diamagnetism

British Dictionary definitions for diamagnetism (1 of 2)


/ (ˌdaɪəˈmæɡnɪˌtɪzəm) /


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 temperatureCompare ferromagnetism, paramagnetism

British Dictionary definitions for diamagnetism (2 of 2)


/ (ˌdaɪəmæɡˈnɛtɪk) /


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

Science definitions for diamagnetism


[ dī′ə-măgnĭ-tĭz′əm ]

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.

Related forms

diamagnetic adjective (dī′ə-măg-nĕtĭk)
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