a council having the highest executive authority.
a council appointed to give advice to the head of a government.
Origin of executive council
An Americanism dating back to 1770–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for executive council
(in Australia and New Zealand) a body consisting of ministers of the Crown presided over by the Governor or Governor-General that formally approves Cabinet decisions, 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