| Abbreviation | Definition |
|---|---|
| MNC | Micro Network Circuit |
| MNDO | Modified Neglect of Differential Overlap |
| MNE | Micro- and Nano- Engineering |
| MNOS | Metal-Nitride-Oxide Semiconductor |
| MNS | Metal-Nitride Semiconductor |
| MNT | Molecular Nano-Technology |
| MO | Magneto-Optical |
| MO | Metal-Organic |
| MOBO | MOtherBOard |
| MOC | Mechanism Operated Cell |
| MOCVD | Metal Organic Chemical Vapor Deposition |
| MOD | Magneto-Optical Disk |
| MODCOD | MODulation and CODing |
| MODEM | MOdulator/DEModulator |
| MODFET | Modulation Doped Field Effect Transistor |
| MOEFA | Manually Operated Electric Fire Alarm |
| MOEP | Ministry of Electric Power |
| MOET | More Open Electrical Technologies |
| MOM | Magneto-Optical Modulator |
| MOM | Microsoft Office Manager |