| Michigan Agricultural College | Academic & Science |
| Macintosh | Academic & Science |
| Marine Archaeology Centre | Academic & Science |
| Association Min?alogique du Canada | Academic & Science |
| Association Mini?e du Canada | Academic & Science |
| Man And Computer | Academic & Science |
| Mid-Atlantic Cyclone | Academic & Science |
| Mathematics And Computation | Academic & Science |
| Mathematics Access Centre | Academic & Science |
| Managerial Assistance Control | Accounts and Finance |
| Money Access Center | Accounts and Finance |
| Macon (ga) | Airport Code |
| Multi-Action Conditioner | Business |
| Marketing Advertising And Communication | Business |
| Metal Alloy Colleague | Business |
| Multi Actors Cooperation | Business |
| Military Armament Corporation | Business |
| Manhattan Association of Cabarets | Business |
| Middle Area Conference | Business |
| Market Access & Compliance | Business |
| Macerich Company | Business |
| Marechale Cap. | Business |
| Macro Corporation Ltd | Business |
| Mobile Analytical Chemical | Chemistry |
| Muslim Association of Canada | Community |
| Makeup, Art, and Cosmetics | Community |
| Mississippi Access to Care | Community |
| Missions Across Canada | Community |
| Make Activities Count | Community |
| Media Action Committee | Community |
| Missions Adventure Camp | Community |
| Mr. Andy Carpenter | Community |
| Makeup Artist Cosmetics | Community |
| Making Activities Count | Community |
| Middle Atlantic Conference | Community |
| Menasha Action Council | Community |
| Ministerial Advisory Committee | Community |
| Multiplexed Analog Components | Community |
| Minority Achievement Committee | Community |
| Mac Apple Corps | Community |
| Management Ad Hoc Committee (TR-41) | Computer and Networking |
| Measured Attenuation Correction | Computer Assembly Language |
| Metered Automatic Cartridge | Computer Hardware |
| Mtime, Atime, Ctime | Computing |
| Motorola Advanced Computer | Computing |
| Medium Access Controller | Computing |
| Macro Analysis Computer | Computing |
| Machine Address Code | Computing |
| Management Adhoc Committee | Computing |
| Multiple Advanced Computers | Computing |
| Machine Access Code | Computing |
| Multiple Architecture Computer | Computing |
| Membership Advisory Committee | Computing |
| Memory Access Control | Computing |
| Mouse Activated Computer | Computing |
| Multiple Analogue Component | Computing |
| Microsoft Approved Course | Computing |
| Mid Atlantic Crossing | Computing |
| Multimedia Affective Computing | Computing |
| Macao, Special Administrative Region of China | Country ISO Code |
| Magic Metaverse | Cryptocurrency |
| Matrexcoin | Cryptocurrency |
| Moves, Adds, and Changes | Database Management |
| Mid-atlantic Cape | Earth Science |
| Management and Administrative Computing | Educational Degree |
| Masters of Acupuncture | Educational Degree |
| Multiply-accumulate | Electronics |
| Multiply and Accumulate | Electronics |
| Maximum Allowable Concentration | Electronics |
| Multiplexed Analogue Components | Electronics |
| Apple Macintosh Black & White Macpaint File Bitmap Graphics | File Type |
| Macro | File Type |
| Ministries Agencies and Commissions | General |
| McKinney Avenue Contemporary | General |
| Macaroni and Cheese | General |
| Maximum Allowable Charge | General |
| Makeup, Art, Cosmetics | General |
| Macs Are Crap | General |
| Moron-Accessible Computer | General |
| Most Awesome Computer | General |
| Mackenzie a character | General |
| Many Assorted Costumes | General |
| Maintaining Active Citizens | General |
| Medicare Administrative | General |
| Macintosh All Caps | General |
| Middle Aged Crazy | General |
| Manga Anime Cartoon | General |
| MacDonald | General |
| Most Amazing Computer | General |
| Multi Activity Car | General |
| Mobile Air Conditioning | General |
| Manual Air Conditioning | General |
| Milano Autoclassica | General |
| Motorist Assistance Center | General |
| Mahindra Adventure Challenge | General |
| Motor Cu Aprindere Prin Compresie | General |
| Mobis Automotive Czech | General |
| Midland Automobile Club | General |
| Mongolian Auto Club | General |
| Minnesota Autosports Club | General |
| Multifunctional Automobile Communication System | General |
| Macadam | General |
| Montreal Audi Club | General |
| Model A Club | General |
| Mitsubishi Adventure Club | General |
| Macau Autosports Club | General |
| Mathworks Automotive Conference | General |
| Marathwada Auto Cluster | General |
| Mill Auto Conversions | General |
| Millmerran Auto Club | General |
| Machine Always Crashes | General |
| Masters Arent Competing | General |
| Managed Assigned Counsel | General |
| Master-at-arms Chief Petty Officer | Governmental |
| Machine Accountant Chief Petty Officer | Governmental |
| Minority Affairs Committee | Governmental |
| Multi Agency Complex | Governmental |
| Midair Attitude Correction | Governmental |
| Mainland Affairs Council | Governmental |
| Manifest Analysis And Certification | Governmental |
| Military Armistice Commission | Governmental |
| Market Access and Compliance | Governmental |
| Middle Aged Cops | Governmental |
| Mental Adjustment to Cancer scale | Governmental |
| Men Against Communism | Governmental |
| Medicare Administrative Contractor | Healthcare |
| MACHIYALA | Indian Railway Station |
| Mandatory Access Control | Information Technology |
| Media Access Control | Information Technology |
| Mexican American Council | International |
| MACarca | International |
| Minimum Antibiotic Concentration | Medical |
| Mitral Annular Calcification | Medical |
| Medication Access Computer | Medical |
| Morning and Afternoon Care | Medical |
| Minimum Alveolar Concentration | Medical |
| Monitored Anesthesia Care | Medical |
| Mammalian Artificial Chromosome | Medical |
| Monitored Anaesthesia Care | Medical |
| Mycrobaterium Avian Complex | Medical |
| macula | Medical |
| Macerated | Medical |
| Marker And Cell | Medical |
| Macintosh (computer) | Medical |
| Major Ambulatory Category | Medical |
| Maximum Acceptable Concentration | Medical |
| Maximum Aerobic Capacity | Medical |
| Medical Advisory Committee | Medical |
| Monitored Anesthesia Control | Medical |
| Mycobacterium Avium Complex | Medical |
| Medicare Appeals Council | Medical |
| Membrane Attack Complex | Medical |
| Migration Advisory Committee | Medical |
| Making A Change | Messaging |
| Mad and Crazy | Messaging |
| Make A Change | Military and Defence |
| Mortuary Affairs Center | Military and Defence |
| Military Airlift Command (now Air Mobility Command) | Military and Defence |
| Maintenance Allocation Chart | Military and Defence |
| Maneuver Area Command | Military and Defence |
| Military Assistance Command | Military and Defence |
| Message Authentication Code | Military and Defence |
| Military Armament Company | Military and Defence |
| Mission Assurance Category | Military and Defence |
| Media Access Controller | Networking |
| Medium Access Control | Networking |
| Magnitude Amplification Cavity | Physics Related |
| Military Advisory Council | Regional |
| Mackintosh | Society & Culture |
| Move, Add, Or Change | Softwares |
| Machine Aided Cognition | Softwares |
| Mac Address Collector | Softwares |
| Main Assistance Console | Space Science |
| Maintenance Advisory Committee | Space Science |
| Maximum Concentration of Organics | Space Science |
| Mean Aerodynamic Chord | Space Science |
| Military Airlift Command | Space Science |
| Multiaccess Computer | Space Science |
| MEVA Automatic Climbing | Sports |
| Midwest Athletic Conference | Sports |
| Multnomah Athletic Club | Sports |
| Marshall and Challengers | Sports |
| Marshall Always Champion | Sports |
| Mid America Conference | Sports |
| Mid-american Conference | Sports |
| Marshall Athletic Conference | Sports |
| Missoula Aquatic Club | Sports |
