Auger effect

[ oh-zhey ]
/ oʊˈʒeɪ /

noun Physics.

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.

Origin of Auger effect

1930–35; named after Pierre V. Auger (born 1899), French physicist
Also called autoionization. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for auger effect

Auger effect
/ (ˈaʊɡə) /


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

Word Origin for Auger effect

C20: named after Pierre Auger (1899–1993), French physicist
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