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Mössbauer effect

American  
[maws-bou-er i-fekt, mos‐] / ˈmɔs baʊ ər ɪˌfɛkt, ˈmɒs‐ /

noun

Physics.
  1. the phenomenon in which an atom in a crystal undergoes no recoil when emitting a gamma ray, giving all the emitted energy to the gamma ray, resulting in a sharply defined wavelength.


Mössbauer effect British  
/ ˈmœsbauər, ˈmɒsˌbaʊə /

noun

  1. physics the phenomenon in which an atomic nucleus in a crystal of certain substances emits a gamma ray without any recoil to the atom. The study of the emitted gamma rays ( Mössbauer spectroscopy ) is used to determine the energy levels in a nucleus, the structure of molecules, etc

"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

Etymology

Origin of Mössbauer effect

1955–60; named after R. Mössbauer ( def. )