Memorandum of Agreement 
Military Operations Area 
Make on Arrival 
Military Operating Area 
Matrix Output Amplifier 
Microlensing Observations in Astrophys… 
Ministry of Agriculture 
minute-of-angle 
Mopar 
Ministry of Aviation 
Mobitex Operators Association 
Managed Object Agent 
maximum overlap approximation 
Meteorology Ozone and Aerosol 
Military Operating Areas 
Military Operation Area 
Maine Optometric Association 
Manager of Object Adapters 
Manifestations of Apprehension 
Manual of Authority 
Manual off auto 
Manual Outgoing Allowed 
Manufacturing Operations Analysis 
Marasmius oreades 
Marasmius oreades agglutinin 
Maryland Optometric Association 
Massachusetts Orthopaedic Association 
mechanism of action 
Medicare Outpatient Adjudication 
medium observation aircraft