| pOH | hydroxide ion concentration in a solution |
|---|---|
| PSL | parasternal line; photostimulable luminescence; potassium, sodium chloride, and sodium lactate [solu... |
| PSS | painful shoulder syndrome; physiologic saline solution; porcine stress syndrome; primary Sjogren syn... |
| RL | radial line; radiation laboratory; reduction level; renal dysplasia-limb defects [syndrome]; resisti... |
| RLS | recursive least square; restless leg syndrome; Ringer lactate solution; Roussy-Levy syndrome |