political system

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A complete set of institutions, political organizations, interest groups (such as political parties, trade unions, lobby groups), the relationships between those institutions and the political norms and rules that govern their functions (constitution, election law).
• noun A system composed of the members of a social organization (group) who are in power.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the members of a social organization who are in power