China 
Africa 
- Big five personality traits
- Bigeminy
- Biglycan
- Biguanide
- Bilateral cancer
- Bilateral hearing loss
- Bilateral hilar lymphadenopathy
- Bilateral nephrectomy
- Bilateral vestibulopathy
- Bile
- Bile acid malabsorption
- Bile acid sequestrants
- Bile acid synthesis
- Bile acids
- Bile canaliculi
- Bile duct
- Bile duct cancer
- Bile duct injury
- Bile duct neoplasms
- Bile pigment
- Bile reflux
- Bile salt hydrolase
- Bile salt-dependent lipase
- Bile salts
- Bilevel positive airway pressure
- Biliary atresia
- Biliary cirrhosis
- Biliary colic
- Biliary disease
- Biliary dyskinesia
- Biliary fistula
- Biliary injury
- Biliary pseudolithiasis
- Biliary reflux
- Biliary sludge
- Biliary system
- Biliary tract
- Biliary tract cancer
- Bilingualism
- Bilirubin
- Bilirubin diglucuronide
- Bilirubin glucuronide
- Bilirubin metabolism
- Bilirubinuria
- Biliverdin
- Biliverdin reductase
- Biliverdin reductase A
- Billroth I
- Billroth II
- Bilobalide
- Biloma
- Bimagrumab
- Bimatoprost
- Bimekizumab
- Bimetal
- Bimolecular fluorescence complementation
- Binaltorphimine
- Binapacryl
- Binary Alignment Map
- Binaural fusion
- Binaural hearing
- Binaural unmasking
- Binders
- Binding affinity
- Binding domains
- Binding energy
- Binding potential
- Binding problem
- Binding protein
- Binding sites
- Bing-Neel syndrome
- Binge Eating Scale
- Binge drinking
- Binge eating
- Binge eating disorder
- Binge eating scale
- Binimetinib
- Binocular disparity
- Binocular neurons
- Binocular rivalry
- Binocular summation
- Binocular vision
- Binswanger disease
- Binswanger's disease
- Binucleated cells
- Bio-MEMS
- Bio-based materials
- Bio-ink
- BioGRID
- BioMart
- BioNumerics
- BioThrax
- Bioaccumulation
- Bioactivation
- Bioactive compounds
- Bioactive glass
- Bioactivity
- Bioadhesives
- Bioaerosols
- Bioallethrin
- Bioamplifier
- Bioanalysis
- Bioartificial organs
- Bioassay
- Bioassays
- Bioavailability
- Biobanks
- Bioburden
- Biocatalysis
- Biocatalyst
- Bioceramic
- Biochanin a
- Biochemical
- Biochemical assays
- Biochemical cascade
- Biochemical pathways
- Biochemical reaction
- Biochemical recurrence
- Biochemistry
- Biochip
- Biocides
- Biocommunication
- Biocompatibility
- Biocompatible materials
- Biocomposites
- Bioconcentration
- Bioconcentration factor
- Bioconjugation
- Biocontainment
- Bioconversion
- Biodefense
- Biodegradable polymers
- Biodiesel
- Biodistribution
- Biodiversity
- Biodosimetry
- Bioecological model
- Bioeconomy
- Bioelectrical impedance analysis
- Bioelectricity
- Bioelectromagnetics
- Bioelectronic
- Bioencapsulation
- Bioenergetics
- Bioequivalence
- Bioethanol
- Bioethics
- Biofabrication
- Biofeedback
- Biofilm