| RD | radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; ... |
|---|---|
| REAR | renal, ear, anal, and radial [malformation syndrome] |
| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
| RID | radial immunodiffusion; remission-inducing drug; ruptured intervertebral disc |
| RK | rabbit kidney; radial keratotomy; reductase kinase; rhodopsin kinase; right kidney |