| Abbreviation | Definition |
|---|---|
| BSA | Bowel Signs Active |
| BSAD | Brief Screen for Adolescent Depression |
| BSCB | Blood Spinal Cord Barrier |
| BSE | Bovine Spongiform Encephalopathy |
| BSE | Breeding Soundness Examination |
| BSITF | Brain and Spinal Injury Trust Fund |
| BSK | Band Shaped Keratopathy |
| BSLC | Brain Stem Locus Coeruleus |
| BSMM | Bleeding of Skin and Mucosa Membrane |
| BSN | Bowel Sounds Normal |
| BSO | Bilateral Salpingo Oophorectomy |
| BSP | Bilateral Salpingo Oophorectomy |
| BSP | Blood Stoppage Patch |
| BSP | BromSulPhalein |
| BSR | Bulbar Synchronizing Region |
| BSU | Bartholin, Skene, and Urethral glands |
| BT | Bacillus Thuringiensis |
| BT | Bacterial Tracheitis |
| BT | Bleeding Time |
| BT | Bowel Transfer |