Mutual Recognition Arrangement 
Minimum Reception Altitude 
Magnetic Resonance Angiography 
Minimum Retirement Age 
Mutual Recognition Agreement 
main ring assembly 
MARATHON 
Mechanical Readiness Assessment 
message release authority 
magnetic resonance angiogram 
Maneuver Rights Area 
Master Residential Appraiser 
Mean Reference Axis 
Microgravity Research Associates 
Mountain Rescue Association 
Multi Role Aircraft 
multiple regression analysis 
machine records activity 
Macintosh Reference Architecture 
Madison Ridgeland Academy 
magnetic resonance angiograms 
magnetic resonance angiographic 
magnetic resonance arteriography 
magnetic resonance arthrography 
magnetic resonance imaging angiography 
Maintenance Requirements Analysis 
malignant RA 
malignant rheumatoid arthritis 
Management and Reconfiguration Assembl… 
Manpower Resource Analysis