a challenge to or overthrow of a sovereign or other leader by members of the ruling family or group.
Origin of palace revolution
First recorded in 1900–05
Also called palace revolt, palace coup [koo] /ku/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for palace coup
a coup d'état made by those already in positions of power, usually with little violence
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