hy·per·fine structure (h  p r-fn )n. Abbr. hfs Any of the spectral lines formed from the splitting of broader spectral lines as a result of the interaction between the magnetic moments of electrons and atomic nuclei. |
hyperfine structure [ˈhaɪpəˌfaɪn]
n
(Physics / General Physics) the splitting of a spectral line of an atom or molecule into two or more closely spaced components as a result of interaction of the electrons with the magnetic moments of the nuclei Compare fine structure See also Zeeman effect
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