| RSS | rat stomach strip; rectosigmoidoscopy; Russell-Silver syndrome |
|---|---|
| RU | radioulnar; rat unit; reading unit; residual urine; resin uptake; resistance unit; retrograde urogra... |
| RV | random variable; rat virus; Rauscher virus; rectovaginal; reinforcement value; renal vein; residual ... |
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| SDR | spontaneously diabetic rat; surgical dressing room |