| Abbreviation | Definition |
|---|---|
| MDR | MIDAS (Maximum Integrated Data Acquisition System) Data Recorder |
| MDRE | Mode Delay Range Estimator |
| MDS | Mobile Display System |
| MDSS | Massive Data Storage System |
| MDVR | Mobile Digital Video Recorder |
| MECB | Motorola Education Computer Board |
| MELF | Metal ELectrode Face |
| MEM | Memory |
| MEMS | Micro-Electro-Mechanical System |
| MESI | Modified, Exclusive, Shared, Invalid |
| MEWI | Midget Electronic Weight Indicator |
| MF | Mass Flowmeter |
| MF | Matched Filter |
| MF | Medium Fast |
| MFA | Multi-Function Actuator |
| MFD | Multi-Function Display |
| MFLOPS | Million FLoating-point Operations Per Second |
| MFP | Mechanical Failure Prevention |
| MFP | Metal Fin Pipe |
| MFP | Multi Functional Printer |