| Mediterranean Sea | Academic & Science |
| Mayan Epigraphic Database Project | Academic & Science |
| medication | Academic & Science |
| Madinah | Airport Code |
| E Medsoft.Com | Business |
| Medicine Education and Dartmouth | Community |
| Minority Enterprise Development | Community |
| Ministry of Economic Development | Community |
| Medical Education Development | Community |
| Medicine Education and Development | Community |
| Manufacturing Engineering Development | Community |
| Multiplexer Entry Descriptor | Computer and Networking |
| Music Editor | Computing |
| Multi Exit Discriminator | Computing |
| Media Endpoint Device | Computing |
| Media Endpoint Discovery | Computing |
| Microsoft Enterprise Desktop | Computing |
| MediBloc | Cryptocurrency |
| Multiple Epiphyseal Dysplasia | Disease |
| Master of Education | Educational Degree in Arts |
| Modeling for Equipment Design | Electronics |
| Macro Editor Delete Save (wordperfect Library) | File Type |
| Music Format (amiga Med/octamed) | File Type |
| Modular Electric Drive | General |
| Motor Electronic for Direct Injection | General |
| Meet Eat Dance | General |
| Member Enhancement Division | General |
| Mint Eye Disguise | General |
| Marine Emergency Duties | General |
| Monster Energy Drink | General |
| Morphine Equivalent Dosage | General |
| Multi Effect Distillation | General |
| Morphine Equivalent Dose | General |
| Management Of External Data | Governmental |
| Marine Equipment Directive | Governmental |
| Mediator | Governmental |
| Marijuana Enforcement Division | Governmental |
| MEDCHAL | Indian Railway Station |
| Middle English Dictionary | International |
| Medical Emergency Director | Medical |
| Medical/Medicine | Medical |
| Minimum Effective Dose | Medical |
| Medial | Medical |
| Minimum Erythemal Dose | Medical |
| Minimal Erythemal Dose | Medical |
| Maximum Effective Dose | Medical |
| microbial electrosynthesis | Medical |
| Medium | Messaging |
| Mediterranean | Military and Defence |
| Message Element Dictionary | Military and Defence |
| Manipulative Electronic Deception | Military and Defence |
| The Mediterranean Sea | Military and Defence |
| Medical Eligibility Determination | Military and Defence |
| Madinah, Saudi Arabia | Regional |
| Mediterrranean Basin | Regional |
| Manual Entry Device | Space Science |
| Medical | Space Science |
| Prince Mohammad bin Abdulaziz International Airport | Transport & Travel |
