China 
Africa 
- BMS-955176
- BMX
- BNIP3
- BNP
- BOD
- BODE index
- BODIPY
- BOLD
- BOSU
- BPD
- BPH
- BPIFA1
- BPPV
- BQ-123
- BQ-788
- BRAF gene
- BRAT diet
- BRCA gene
- BRCA mutations
- BRCA1
- BRCA1 protein
- BRCA2
- BRCT domain
- BRD4
- BRD9
- BRIP1
- BST2
- BSTFA
- BTB-POZ domain
- BTEX
- BTK
- BTLA
- BU08028
- BVD
- BW284C51
- BZLF1
- Babbling
- Babesia
- Babesia bovis
- Babesia divergens
- Babesiosis
- Babinski reflex
- Babinski sign
- Baboon syndrome
- Baby Boom
- Baby hamster kidney cells
- Baby oil
- Baby powder
- Baby walkers
- Baby-led weaning
- BacMam
- Bacampicillin
- Baccatin iii
- Bach1
- Bach2
- Bachmann's bundle
- Bacillaceae
- Bacillales
- Bacillary angiomatosis
- Bacillary dysentery
- Bacilli
- Bacillus
- Bacillus amyloliquefaciens
- Bacillus anthracis
- Bacillus cereus
- Bacillus licheniformis
- Bacillus megaterium
- Bacillus mesentericus
- Bacillus mycoides
- Bacillus pumilus
- Bacillus sphaericus
- Bacillus stearothermophilus
- Bacillus subtilis
- Bacillus thuringiensis
- Bacitracin
- Bacitracin zinc
- Back
- Back injuries
- Back pain
- Back strain
- Backache
- Backcrossing
- Backscattering
- Backward chaining
- Backward masking
- Baclofen
- Bacopa monnieri
- Bacteremia
- Bacteria
- Bacterial adhesin
- Bacterial capsules
- Bacterial cell wall
- Bacterial cellulose
- Bacterial chromosome
- Bacterial conjunctivitis
- Bacterial culture
- Bacterial disease
- Bacterial effector proteins
- Bacterial endocarditis
- Bacterial flagellum
- Bacterial infections
- Bacterial keratitis
- Bacterial lawn
- Bacterial meningitis
- Bacterial motility
- Bacterial neuraminidase
- Bacterial outer membrane
- Bacterial overgrowth
- Bacterial phyla
- Bacterial pneumonia
- Bacterial protein
- Bacterial strain
- Bacterial stress response
- Bacterial toxins
- Bacterial transformation
- Bacterial translocation
- Bacterial vaginosis
- Bacterial wilt
- Bacteriochlorophyll
- Bacteriocins
- Bacterioferritin
- Bacteriologists
- Bacteriology
- Bacteriolysis
- Bacteriophage ms2
- Bacteriophages
- Bacteriorhodopsin
- Bacteriostatic
- Bacteriostatic agent
- Bacteriuria
- Bacteroidaceae
- Bacteroidales
- Bacteroides
- Bacteroides fragilis
- Bacteroides thetaiotaomicron
- Bacteroides vulgatus
- Bacteroidetes
- Bactoprenol
- Bactris gasipaes
- Bacula
- Baculoviridae
- Baculovirus
- Bad faith
- Bad habit
- Bad trip
- Baffle
- Bafilomycin
- Bafilomycin a1
- Bag1
- Bag3