| 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... |
| RS virus | Respiratory Synthitial virus |
| ADV | adenovirus; adventitia; Aleutian disease virus; Aujeszky disease virus |
| AmuLV | Abelson murine leukemia virus; amphotrophic murine leukemia virus |