| RD | radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; ... |
|---|---|
| RMSD | root-mean-square deviation |
| RSD | reflex sympathetic dystrophy; relative standard deviation |
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| SDI | standard deviation interval; survey diagnostic instrument |