| Bakteriose | bacteriosis |
| Bakterie | bacterium bacteria |
| Bakterioid | bacteroid |
| Bakteriolyse | bacteriolysis |
| Bakterien | bacteria |
| Bakterium | bacterium |
| Bakteriologe | bacteriologist |
| Bakteriostase | bacteriostasis |
| Bakteriurie | bacteriuria |
| Bakterizid | bactericide |
| bakterizid | bactericidal |
| Bakteriämie | bacteraemia |
| bakteriell | bacterial |
| Batterie | battery |
| Butterdose | butter dish |
| bitterböse | furious livid |
| Babesiose | babesiosis |
| Baktrerin | Bactrian |
| Baktrien | Bactria |
| Baktrier | Bactrian |