Mortar Carrier 
Monte Carlo 
Military Committee 
Mission Capable 
Mission Computer 
Maintenance Center 
Master of Ceremonies 
Mixture Control 
Measuring Core 
multiple categories 
Multipoint Controller 
Management Control 
Marine Corps 
Master Clock 
Message Center 
mission capability 
Modulation Collimator 
magnetic course 
Magnetospheric Constellation 
Main Cross-Connect 
Management Committee 
Manned Core 
Medicines Commission 
Megacycle 
memory configuration 
military characteristics 
Missile Control 
Mission Critical 
Mississippi College 
moisture content