| Abbreviation | Definition |
|---|---|
| PMR | proportionate mortality ratio |
| PMR | psychomotor retardation |
| PMS | physiologic monitoring system |
| PMS | plasmid maintenance sequence |
| PMS | poor miserable soul |
| PMS | postmarketing surveillance |
| PMS | postmeiotic segregation |
| PMS | postmitochondrial supernatant |
| PMS | Pravastatin Multinational Study |
| PMS | premenstrual syndrome |
| PMS | primary medical services |
| PND | Purulent Nasal Discharge |
| PNL | Prior Notification List |
| PO | Patient Opinion |
| POC | persistent organohalogen compound |
| POC | postoperative care |
| POC | primary olfactory cortex |
| POC | progestin-only oral contaceptive |
| POC | Progestogen-only contraception |
| POC | proof of concept (!) |