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electron spin resonance

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electron spin resonance

–noun Physics.
the flipping back and forth between two spin directions of electrons in a magnetic field when electromagnetic radiation of the proper frequency is applied. Abbreviation: ESR
Also called electron paramagnetic resonance, spin resonance.


Origin:
1950–55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: electron spin resonance
Function: noun
: the resonance of unpaired electrons in a magnetic field
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

electron spin resonance n.

Abbr. ESR A spectrometric method, based on measurement of the spins of unpaired electrons in a magnetic field, for detecting and estimating free radicals in organic reactions.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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