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1. A widely distributed system of free and fixed macrophages derived from bone marrow
   - mononuclear phagocyte system, system of macrophages

1. (military) a member of the military police who polices soldiers and guards prisoners
   - military policeman
    
2. An elected member of the British Parliament: a member of the House of Commons
   - Parliamentarian, Member of Parliament
    
3. (military) a military corps that enforces discipline and guards prisoners
   - military police

Type of: force, law officer, lawman, legislator, peace officer, personnel, system

Part of: British House of Commons, Commons [UK], House of Commons, RES, reticuloendothelial system

Encyclopedia: MPS