| Abbreviation | Definition |
|---|---|
| ME | Measurement of Energy |
| ME | Mechanic Energy |
| ME | Mechanical Energy |
| ME | Mechanical Equilibrium |
| MEAS | MEASurement |
| MEEP | MIT Electromagnetic Equation Propagation |
| MEG | Maker, Etonic, and Gandalf |
| MEG | Motionless Electromagnetic Generator |
| MEGA | 1,048,576 |
| MEPS | Microencapsulation Electrostatic Processing System |
| MES | Minimum Efficient Scale |
| MESM | Multifunctional Energetic Structural Material |
| MEST | Matter Energy Space Time |
| MEW | Mary Elizabeth Wallace |
| MFCG | Magnetic Flux Compression Generator |
| MFCs | microbial fuel cells |
| MFL | Magnectic Flux Leakage |
| MFP | Mass Flow Parameter |
| MFP | Maximal Fixed Point |
| MFP | Mixed Fission Products |