[ dih-fek-shuhn ]
/ dɪˈfɛk ʃən /


desertion from allegiance, loyalty, duty, or the like; apostasy: His defection to East Germany was regarded as treasonable.
failure; lack; loss: He was overcome by a sudden defection of courage.

Origin of defection

1535–45; < Latin dēfectiōn- (stem of dēfectiō), equivalent to dēfect(us) (see defect) + -iōn- -ion

Related forms

non·de·fec·tion, nounre·de·fec·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for defection

British Dictionary definitions for defection


/ (dɪˈfɛkʃən) /


the act or an instance of defecting
abandonment of duty, allegiance, principles, etc; backsliding

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