| Abbreviation | Definition |
|---|---|
| MLC | Member of Legislative Council |
| MLC | Midline Catheter |
| MLD | Metachromatic LeukoDystrophy |
| MLI | Multi-Layer Insulation |
| MLIS | Master of Library and Information Studies |
| MLO | Medical Laboratory Observer |
| MLP | Mobile Launch Platform |
| MLR | Move and Lose Record |
| MLS | Medical Laboratory Science |
| MLS | Master of Library Science |
| MLS | Microwave Limb Sounder |
| MLS | Microwave Landing System |
| MLSC | Military Service |
| MLT | Medical Laboratory Technology |
| MLT | Medical Laboratory Technician |
| MLV | Murine Leukemia Virus |
| mm | Millimetre |
| MM | Master of Management |
| MM | Move Memory |
| mm | Millimeter |
| MM | Malignant Melanoma |
| MM | Multiple Myeloma |
| MM | MeningoMyelocele |
| MMA | Manual Metal Arc Welding |
| MMAP | Mean Maternal Arterial Blood Pressure |
| MMC | Master of Mass Communications |
| MMC | Man Machine Code |
| MMC | Microsoft Management Console |
| MMC | Multimedia Card |
| MMC | Maximum Mass Concentration |
| MMC | Maintenance Monitoring Console |
| MMC | Metal Matrix Composite |
| MMCC | Mission Management And Control Centre |
| MMD | Master of Management Development |
| MMD | Minimal Melanogenic Dose |
| MMD | Mini-Marketing Director |
| MME | Micro Manager Extreme |
| MMERT | Merchant Marine Education and Research Trust |
| MMES | Master of Marine and Environmental Science |
| MMH | MonoMethyl Hydrazine |
| MMIA | Methods and Models for Integrated Assessment |
| MMIC | Mass Marketing Insurance Consultant |
| MMIHS | Megacystis-microcolon-intestinal Hypoperistalsis Syndrome |
| MMIO | Memory - Mapped I/O |
| MMM | Master of Medical Management |
| MMMT | Malignant Mixed Mesodermal Tumor |
| MMP | Muscle Mechanical Power |
| MMPI | Minnesota Multiphasic Personality Inventory |
| MMPO | Mission Management And Planning Office |
| MMR | Masseter Muscle Rigidity |