| red | reduction |
|---|---|
| redox | oxidation-reduction |
| RL | radial line; radiation laboratory; reduction level; renal dysplasia-limb defects [syndrome]; resisti... |
| ROM | range of motion; read only memory; reduction of movement; regional office manual; removal of metal [... |
| RRC | residency review committee; risk reduction component; routine respiratory care; Royal Red Cross; rur... |