| SDBP | seated (or standing, or supine) diastolic blood pressure |
|---|---|
| SDC | serum digoxin concentration; Smith delay compensator; sodium deoxycholate; subacute combined degeneration; subclavian hemodialysis catheter; succinyldicholine; syndectan |
| SDCL | symptom distress check list |
| SDCN | N-syndectan, neural syndectan |
| SDD | sporadic depressive disease; sterile dry dressing |
| SDDS | 2-sulfamoyl-4,4;pr-diaminodiphenylsulfone |
| SDE | specific dynamic effect; subdural empyema |
| SDEEG | sterotactic depth electroencephalography |
| SDES | symptomatic diffuse esophageal spasm |
| SDF | slow death factor; stress distribution factor |