| RV | random variable; rat virus; Rauscher virus; rectovaginal; reinforcement value; renal vein; residual ... |
|---|---|
| SV | saphenous vein; sarcoma virus; satellite virus; selective vagotomy; semilunar valve; seminal vesicle... |
| COLD | Chronic Obstructive Lung Disease |
| COWS | Cold Opposite, Warm Same |
| PCH | Paroxysmal Cold Hemoglobinuria |