| Abbreviation | Definition |
|---|---|
| MTU | Metric Tons of Uranium |
| MTV | A Million Teeming Vermin |
| MTW | Mean Time Waiting |
| MU | Mass Units |
| MU | Master Units |
| MU | Measuring Unit |
| MUOM | Metric Units Of Measurement |
| MUSD | Million United States Dollars |
| mv | milli volt |
| mV | millivolt |
| MVA | Mega Volt Amp |
| MVII | Roman numeral 1007 |
| MW | MegaWatt |
| MW | Megawatts |
| mW | milliWatt |
| MWAT | Maximum Weekly Maximum Temperature |
| MWE | MegaWatt of Electricity |
| MWE | MegaWatt Thermal |
| MWTH | MegaWatt THerma |
| MWU | Manual Work Unit |