| Abbreviation | Definition |
|---|---|
| MEDS | Medicines |
| MEF | Maximal Expiratory Flow |
| MEFR | Maximal Expiratory Flow Rate |
| MEG | Magneto Encephalo Graph |
| MEG | Meglumine |
| MEH | Medical Eye History |
| MEH | Menstral Eye Hepatitis |
| MEK | Methyl Ethyl Keytone |
| MEK | mitogen-activated protein |
| MEL | Medical Emergency License |
| MEL | Melanoma |
| MELD | Mayo End-stage Liver Disease |
| MELD | model for end-stage liver disease |
| MEM | Memorize |
| MEMS | Medication Event Monitoring System |
| MenC | Meningitis C |
| MENTH | Menthol |
| MEP | Maximum Expiratory Pressure |
| MEP | megakaryocyte-erythroid progenitor cell |
| MEP | Motor End Platelet |