a system of municipal government in which all the legislative and executive powers of the city are concentrated in the hands of a commission.
Origin of commission plan
First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(in the US) a system of municipal government that combines legislative and executive authority in a commission of five or six elected members
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