| Abbreviation | Definition |
|---|---|
| PO | Per Os (by mouth) |
| PO | Physicians Orders |
| PO | Post Operative |
| PO2 | Pressure of Oxygen |
| POAG | Primary Open Angle Glaucoma |
| POB | Physicians Office Building |
| POC | Pain On Contact |
| POC | Physician Office Center |
| POC | Primary Olfactory Complex |
| PODS | Positive Outcomes Don't Stress |
| POE | Phylogeny Ontogeny And Epigenesis |
| POE | Physician Order Entry |
| POESTEARATE | Polyoxyethylene Stearate |
| POET | Physician Order Entry Team |
| POET | Point Of Entry Treatment |
| POF | Physician On FIRE |
| POF | Premature Ovarian Failure |
| POG | Prisoner Of Gravity |
| POHI | Physically or Otherwise Health Impaired |
| POHS | Presumed Ocular Histoplasmosis Syndrome |