| Abbreviation | Definition |
|---|---|
| MDP | Multidrug Resistance Protein |
| MDR | Multi-Drug Resistance |
| MDR | multi-drug resistant/ce |
| MDRO(s) | multi-drug-resistant organism(s) |
| MDRP | Multi-Drug Resistant Pathogen |
| ME | Mature Equivalent |
| MED | microbial electrosynthesis |
| MEG | MonoEthylene Glycol |
| MELFI | Minus Eighty Laboratory Freezer for Iss |
| MEM | Minimum Essential Medium |
| MER | Medical Education Resources |
| MESA | Multi Ethnic Study of Atherosclerosis |
| MESL | Microelectronic Embedded Systems Laboratory |
| Met | METhionine |
| MET | Microbial Electrochemical Technology |
| MET | Microbial Exploration Technology |
| MF | Membrane Filter |
| Mf | M-phage (Greek symbol) |
| MFA | Mean Flourescence Activity |
| MFPI | Multi-Functional Peroxisomal Isozyme |