| MicroStation Development Libraries | Academic & Science |
| Maryland Digital Library | Academic & Science |
| Mandalay | Airport Code |
| Multiple Distribution Line | Business |
| Mineral Deposits Ltd | Business |
| Maximum Dollar Limit | Business |
| Master Documents List | Business |
| Multiple Disciplinary Learning | Community |
| Meteorological Development Lab | Community |
| Microwave Development Labs | Community |
| Minimal Description Length | Computing |
| Model File | Computing |
| Meaning Definition Language | Computing |
| Missing Delimiter on List | Computing |
| Meta Data Layer | Computing |
| Mode Data Length | Computing |
| Maintenance Data Link | Computing |
| Message Definition Language | Computing |
| Maintenance Digital Link | Computing |
| Multicast Data Link | Computing |
| Microstation Development Language | Computing |
| Memory Descriptor List | Computing |
| Minimum Description Length | Computing |
| Master Directory Listing | Computing |
| Mobile Driver License | Computing |
| Mobile Driving Licence | Computing |
| Management Data List | Computing |
| Model Description Language | Computing |
| Moldovan Leu | Country Currency |
| Meta Decentraland | Cryptocurrency |
| Minimum Detectable Level | Electronics |
| 3d Design Plus Geometrical Model | File Type |
| Rational Rose 98 Object Design Model | File Type |
| Spreadsheet (ca-compete!) | File Type |
| Marxist Deranged Lunatic | General |
| Main Document List | General |
| Method Detection Limit | General |
| Material Definition Language | General |
| Malware Domain List | General |
| MIT Design Language | General |
| Material Design Lite | General |
| Multiple Detonation Launcher | General |
| Midwest Developmental League | General |
| Marinens Depot Liverpool | General |
| Mountain Dew League | General |
| Multidisciplinary Design Lab | General |
| Main Deck Loaders | General |
| Molecular Design Limited | General |
| Master Deliverables List | General |
| Method Detection Limits | General |
| My Digital Life | General |
| Molecular Diagnostics Lab | General |
| Mandatory Decompression Limit | General |
| Manual Door Lock | General |
| Mechanical Differential Lock | General |
| Multi District Litigation | Governmental |
| MANDAL | Indian Railway Station |
| Mitglied Des Landtages | International |
| Minimum Detection Limit | Medical |
| Medical DeviceLink | Medical |
| Molecular Diagnostic Laboratories | Medical |
| Medical Device Logistics | Medical |
| Meteorological Development Laboratory | Medical |
| Microwave Development Laboratories | Medical |
| Medical Diagnostic Laboratories | Medical |
| Microbial Diseases Laboratory | Medical |
| Military Demarcation Line | Military and Defence |
| Motivated Dedicated Lethal | Military and Defence |
| Mazagaon Dock Limited | Miniratna Central Public Sector Enterprise |
| Method Detection Levels | Physics Related |
| Maximum Discharge Level | Physics Related |
| Mandalay, Burma (Myanmar) | Regional |
| Microsoft Data Link | Softwares |
| Master Data Library | Space Science |
