| ALW | arch-loop whorl |
|---|---|
| bHLH | basic helix-loop-helix |
| bHLH-ZIP | basic helix-loop-helix-leucine zipper |
| BL | Barre-Lieou [syndrome]; basal lamina; baseline; Bessey-Lowry [unit]; black light; bladder; bleeding;... |
| BLS | bare lymphocyte syndrome; basic life support; blind loop syndrome; blood and lymphatic system; blood... |