| bactériologie | bacteriología |
| bactériologique | bacteriológico |
| bactériologiste | bacteriólogo |
| bactériophage | bacteriófago |
| Bactériorhodopsine | Bacteriorodopsina |
| Baculovirus | Baculoviridae |
| Bacău | Bacău |
| Bad Bergzabern | Bad Bergzabern |
| Bad Boy Records | Bad Boy Records |
| Bad Boys II | Bad Boys II |
| Bad Brains | Bad Brains |
| Bad Doberan | Bad Doberan |
| Bad Dürkheim | Distrito de Bad Dürkheim |
| Bad Ems | Bad Ems |
| Bad Gastein | Bad Gastein |
| Bad Hersfeld | Bad Hersfeld |
| Bad Kissingen | Distrito de Bad Kissingen |
| Bad Kreuznach | Bad Kreuznach |
| Bad Mergentheim | Bad Mergentheim |
| Bad Religion | Bad Religion |
| Bad Rothenfelde | Bad Rothenfelde |
| Bad Taste | Bad Taste |
| bad trip | mal viaje |
| Bad Wiessee | Bad Wiessee |
| Badajoz | Badajoz |
| Badakhchan | Provincia de Badahšan |
| Badalona | Badalona |
| Badamier | Terminalia catappa |
| Badari | Badariense |
| badaud | espectador |
| badaude | espectadora |
| Baddack | Bardock |
| Bade | Baden |
| Bade-Wurtemberg | Baden-Wurtemberg |
| Baden | Baden |
| Baden-Baden | Baden-Baden |
| Badens | Baden |
| badge | distintivo |
| badiane chinoise | anís estrellado |
| badigeonner | aplicar |
| badigeonner en blanc | blanquear |
| badin | festivo |
| badinage | broma |
| badinant | socarrón |
| badine | latigazo |
| badiner | bromear |
| badminton | bádminton |
| Badminton aux jeux Olympiques | Bádminton en los Juegos Olímpicos |
| BAe Systems | BAE Systems |
| Bael | Bael |
| Baerendorf | Baerendorf |
| Baerle-Duc | Baarle-Hertog |
| baffle | altavoz |
| bafouer | burlarse de |
| Bafours | Bafour |
| BAFTA du meilleur film | BAFTA a la mejor película |
| Bagaceratops | Bagaceratops |
| Bagaces | Bagaces |
| bagage | bulto |
| bagage à main | equipaje de mano |
