| BRBN | blue rubber bleb nevus |
|---|---|
| BRBNS | blue rubber bleb nevus syndrome |
| BS | Bachelor of Science; Bachelor of Surgery; Bacillus subtilis; Bartter syndrome; base strap; bedside; ... |
| BSA | benzenesulfonic acid; Biofeedback Society of America; bismuth-sulfite agar; bis-trimethylsilyl-aceta... |
| BTB | breakthrough bleeding; bromthymol blue |