| PIPJ | proximal interphalangeal joint |
|---|---|
| POSS | proximal over-shoulder strap |
| PP | diphosphate group; emphysema [pink puffers]; near point of accommodation [Lat. punctum proximum]; pa... |
| PPC | pentose phosphate cycle; peripheral posterior curve; plasma prothrombin conversion; pneumopericardiu... |
| prox | proximal |