nuclear magnetic resonance

nuclear magnetic resonance

n. Abbr. NMR

The absorption of electromagnetic radiation of a specific frequency by an atomic nucleus that is placed in a strong magnetic field, used especially in spectroscopic studies of molecular structure and in medicine to measure rates of metabolism.

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nuclear magnetic resonance

n

(Physics / General Physics) 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 See also electron spin resonance

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nuclear magnetic resonance

The absorption of electromagnetic energy (typically radio waves) by the nuclei of atoms placed in a strong magnetic field. The nuclei of different atoms absorb unique frequencies of radiation depending on their environment, thus by observing which frequencies are absorbed by a sample placed in a strong magnetic field (and later emitted again, when the magnetic field is removed), it is possible to learn much about the sample's makeup and structure. Nuclear magnetic resonance has no known side effects on the human body, and is therefore used to analyze soft body tissues in magnetic resonance imaging (MRI).

Thesaurus

Noun

1.

nuclear magnetic resonance - resonance of protons to radiation in a magnetic field NMR, proton magnetic resonance magnetic resonance - resonance of electrons or atoms or molecules or nuclei to radiation frequencies as a result of space quantization in a magnetic field