| Abbreviation | Definition |
|---|---|
| SARS | Seasonally Affected Regional Syndrome |
| SARS | Systematic Achromia Resistant Spores |
| SAS | Short Attention Span |
| SAS | Subvalvular Aortic Stenosis |
| SAT | Satisfactory |
| SAT | Saturation (usually Oxygen Saturation) |
| SAVE | Support the AIDS Vaccine Effort |
| SB | Small Bowel |
| SB | Sternal Border |
| SBD | Senile Brain Disease |
| SBD | Silent But Deadly |
| SBD | Swim Bladder Disorder |
| SBE | Short Below Elbow |
| SBE | Shortness Of Breath On Exertion |
| SBE | Subacute Bacterial Endocarditis |
| SBFT | Small Bowel Follow Through |
| SBMA | Spinal Bulbar Muscular Atrophy |
| SBNS | Spina Bifida Neurological Scale |
| SBO | Small bowel obstruction |
| SBP | Spontaneous Bacterial Peritonitis |