nu'clear magnet'ic res'onance

the selective absorption of electromagnetic radiation by an atomic nucleus in the presence of a strong, static, magnetic field: used in research and in medicine to monitor tissue metabolism and to distinguish between normal and abnormal cells. Cf. MRI. Abbr.: NMR

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

nuclearizenuclear magneton
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