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Auger effect

American  
[oh-zhey i-fekt] / oʊˈʒeɪ ɪˌfɛkt /

noun

Physics.

  1. a nonradiative process in which an atom in an excited state undergoes a transition to a lower state by the emission of a bound electron Auger electron rather than by the emission of an x-ray.

Auger effect British  
/ ˈaʊɡə /

noun

  1. the spontaneous emission of an electron instead of a photon by an excited ion as a result of a vacancy being filled in an inner electron shell

"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 Auger effect

First recorded 1930–35; named after Pierre V. Auger (1899–1993), French physicist

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.