| REP | replication protein; rest-exercise program; retrograde pyelogram; roentgen equivalent-physical |
|---|---|
| rep | let it be repeated [Lat. repetatur]; replication; roentgen equivalent-physical |
| RES | Reticulo-Endothelial System |
| ol | res oleoresin |
| RES | radionuclide esophageal scintigraphy; reticuloendothelial system |