| bacille | bacillus |
| Bacille de Calmette et Guérin | Bacillus Calmette-Guérin |
| Bacille de Koch | Mycobacterium tuberculosis |
| Bacille tuberculeux | Mycobacterium tuberculosis |
| bacilliforme | bacilliform |
| Bacillose | Tuberculosis |
| Bacitracine | Bacitracin |
| Back in Black | Back in Black |
| Back To Basics | Back to Basics |
| Back to Bedlam | Back to Bedlam |
| Back to Black | Back to Black |
| Back to earth | Back to Earth |
| Back to Jerusalem | Back To Jerusalem movement |
| back-end | back end |
| Backdraft | Backdraft |
| backgammon | backgammon |
| Background Intelligent Transfer Service | Background Intelligent Transfer Service |
| Backnang | Backnang |
| Backstreet Boys | Backstreet Boys |
| Backwaters | Backwaters of Kerala |
| Baclofène | Baclofen |
| Baco noir | Baco noir |
| bacon | bacon |
| baconien | Baconian |
| Bacteria | Bacteria |
| Bacterial Artificial Chromosome | Bacterial artificial chromosome |
| Bactriane | Bactria |
| Bactrie | Bactria |
| Bactris gasipaes | Bactris gasipaes |
| Bactrocera | List of Bactrocera species |
| Bactrosaurus | Bactrosaurus |
| bactériacées | bacteriacea |
| bactéricide | bactericide |
| bactérie | bacterium |
| bactérie fécale | faecal bacterium |
| bactérien | bacterial |
| bactéries | bacteria |
| bactériologie | bacteriology |
| bactériologique | bacteriological |
| bactériologiste | bacteriologist |
| Bactériolytique | Bacteriolytic |
| bactériophage | bacteriophage |
| Bactériorhodopsine | Bacteriorhodopsin |
| Bacău | Bacău |
| Bad Abbach | Bad Abbach |
| Bad Aibling | Bad Aibling |
| Bad Arolsen | Bad Arolsen |
| Bad Bentheim | Bad Bentheim |
| Bad Bergzabern | Bad Bergzabern |
| Bad Berka | Bad Berka |
| Bad Bleiberg | Bad Bleiberg |
