| BCR | B-cell reactivity; birth control regimen; breakpoint cluster region; bromocriptine; bulbocavernous reflex |
|---|---|
| BCRS | brief cognitive rating scale |
| BCRx | birth control drug |
| BCS | battered child syndrome; blood cell separator; British Cardiac Society; Budd-Chiari syndrome |
| BCSI | breast cancer screening indicator |
| BCT | brachiocephalic trunk; branched-chain amino acid transferase |
| BCTF | Breast Cancer Task Force |
| BCtg | bovine chymotrypsinogen |
| BCtr | bovine chymotrypsin |
| BCW | biological and chemical warfare |