Zeeman effect

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈziːmən/


WordReference Random House Unabridged Dictionary of American English © 2025
Zee′man effect′, [Physics, Optics.]
  1. Optics, Physicsthe dividing of a spectral line or lines as a result of placing a radiation source in a magnetic field. The division consists of three equally spaced lines (normal Zeeman effect) in systems for which the spin quantum number is zero, or of three or more unequally spaced lines (anomalous Zeeman effect) in systems for which the spin quantum number is not zero. Also called Zee′man split′ting. Cf. Paschen-Back effect. 
  • named after P. Zeeman 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::
Zeeman effect / ˈziːmən/
  1. the splitting of a spectral line of a substance into several closely spaced lines when the substance is placed in a magnetic field
Etymology: 20th Century: named after Pieter Zeeman (1865–1943), Dutch physicist
'Zeeman effect' also found in these entries (note: many are not synonyms or translations):
Paschen-Back effect - anomalous Zeeman effect - normal Zeeman effect

Forum discussions with the word(s) "Zeeman effect" in the title:


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