| Abbreviation | Definition |
|---|---|
| BRN | Bulk Richardson Number |
| BRS | baroreceptor reflex sensitivity |
| BRS | baroreceptor sensitivity |
| BRS | bibliographic retrieval service |
| BRS | body restraint system |
| BRS | British Roentgen Society |
| BRS | brown recluse spider |
| BS | Bachelor of Surgery |
| BS | backscatter spectroscopy |
| BS | bariatric surgery |
| BS | Bartter syndrome |
| BS | basisphenoid |
| BS | bedside |
| BS | Beh??et syndrome |
| BS | Behçet syndrome |
| BS | bile salt |
| BS | bismuth subsalicylate |
| BS | bismuth sulphite |
| BS | blepharospasm |
| BS | blood sample |