| Abbreviation | Definition |
|---|---|
| MMKE | Modified Master Kinetic Equation |
| MMKT | Methods and Models of Kinetic Theory |
| MML | Material Measurement Laboratory |
| MMMA | Magnetically Modulated Microwave Absorption |
| MMPDS | Metallic Materials Properties Development and Standardization |
| MMX | A Multi Media Xtensions |
| MN | MegaNewton |
| MNAB | Micro to Nano Addressing Block |
| MND | Mahan-Nozieres-DeDominicis |
| MNO2 | Manganese Oxide |
| MNP | Medical Nuclear Physics |
| MNR | Mark Not Recorded |
| MNX | Magnetic Nozzle eXperiment |
| MO | MOment |
| MOA | Microlensing Observations in Astrophysics |
| MOA | Model Of Attraction |
| MOBI | Microgravity Observations of Bubble Interactions |
| MOD | Metal Oxide Deposition |
| MOD | Minimum Object Distance |
| MOEMS | Micro-Optical Electro-Mechanical System |