Pronunciation: (mi-lish'u),[key] —n. 1. a body of citizens enrolled for military service, and called out periodically for drill but serving full time only in emergencies.
2. a body of citizen soldiers as distinguished from professional soldiers.
3. all able-bodied males considered by law eligible for military service.
4. a body of citizens organized in a paramilitary group and typically regarding themselves as defenders of individual rights against the presumed interference of the federal government.