a technique for determining the magnetic moments of nuclei by subjecting a substance to high-frequency radiation and a large magnetic field. The technique is used as a method of determining structure
Abbreviation: NMR
WordReference Random House Unabridged Dictionary of American English © 2026
nu′clear magnet′ic res′onance, [Physics.]
- Physicsthe 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
- 1940–45
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