| OPL | other party liability; outer plexiform layer; ovine placental lactogen |
|---|---|
| OSF | organ system failure; osteoclast-stimulating factor; outer spiral fiber; overgrowth stimulating fact... |
| OULQ | outer upper left quadrant |
| OURQ | outer upper right quadrant |
| POMP | phase-offset multiplanar [pulse sequence in magnetic resonance imaging]; principal outer material pr... |