| RBD | recurrent brief depression; relative biological dose; right border of dullness |
|---|---|
| RDS | Raskin Depression Scale; respiratory distress syndrome; reticuloendothelial depressing substance; rh... |
| RND | radical neck dissection; radionuclide dacryography; reactive neurotic depression |
| S-D | sickle-cell hemoglobin D; suicide-depression |
| SHORT, S-H-O-R-T | short stature, hyperextensibility of joints or hernia or both, ocular depression, Rieger anomaly, te... |