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hyperfine structure

[ hahy-per-fahyn, hahy- ]

noun

, Physics.
  1. the splitting of the lines of an atomic spectrum, produced by the angular momentum of the nucleus of the atom.


hyperfine structure

/ ˈhaɪpəˌfaɪn /

noun

  1. 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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of hyperfine structure1

First recorded in 1925–30; hyper- + fine 1

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hyperfictionhyperfocal distance