| RCL | renal clearance |
|---|---|
| RD | radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; ... |
| RE | radium emanation; readmission; rectal examination; reference emitter; reflux esophagitis; regional e... |
| REA | radiation emergency area; radioenzymatic assay; renal anastomosis; right ear advantage |
| REAR | renal, ear, anal, and radial [malformation syndrome] |