nuclear magnetic resonance n
1) the magnetic resonance of an atomic nucleus
2) chemical analysis that uses nuclear magnetic resonance esp. to study molecular structure abbr. NMR see MAGNETIC RESONANCE IMAGING
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a measure, by means of applying an external magnetic field to a solution in a constant radiofrequency field, of the magnetic moment of atomic nuclei to determine the structure of organic compounds. This technique is used in magnetic resonance imaging (q.v.).Medical dictionary. 2011.