China 
Africa 
- Bismuth subcarbonate
- Bismuth subsalicylate
- Bismuth sulfide
- Bismuth telluride
- Bismuth titanate
- Bismuth vanadate
- Bismuth(iii) oxide
- Bismuthate
- Bismuthinite
- Bismutite
- Bispectrum
- Bisphenol af
- Bisphosphonates
- Bistability
- Bistable
- Bistatic radar
- Bistatic sonar
- Bistriflimide
- Bisulfide
- Bisulfite
- Bisulfite sequencing
- Bit
- Bit array
- Bit cell
- Bit depth
- Bit inversion
- Bit plane
- Bit rate
- Bit-reversal permutation
- BitTorrent
- Bitcoin Core
- Bite angle
- Bitmaps
- Bitstream
- Bittern
- Bitumen
- Bituminite
- Bituminous coal
- Bituminous rocks
- Bitwise operations
- Biuret
- Bivalent
- Bivalirudin
- Bivariate
- Bivariate analysis
- Bivariate data
- Bixbyite
- Bixin
- Bjerrum length
- Black Warrior Basin
- Black body
- Black box
- Black carbon
- Black holes
- Black ice
- Black level
- Black light
- Black liquor
- Black lung disease
- Black oxide
- Black pepper
- Black sand
- Black silicon
- Black start
- Black yeast
- Black-Scholes
- Black-body radiation
- Blackboard
- Blackboard Learn
- Blackbox
- Blacklight
- Blacklist
- Blacklisting
- Blackout
- Blacksmiths
- Blackwater
- Bladder
- Bladder augmentation
- Blade element momentum theory
- Blade element theory
- Blade pitch
- Blade servers
- Blades
- Blake
- Blake2
- Blank value
- Blanket
- Blast
- Blast furnace
- Blast furnace gas
- Blast furnace slag
- Blast furnaces
- Blast injury
- Blast walls
- Blast wave
- Blast-resistant
- Blasting
- Blazed grating
- Bleach
- Bleach activator
- Bleached
- Bleaching
- Blebbing
- Blebs
- Bleed air
- Bleeding
- Bleeding time
- Blended learning
- Blended wing body
- Blends
- Bleomycin
- Bleomycin hydrolase
- Blepharitis
- Blimps
- Blinatumomab
- Blind
- Blind deconvolution
- Blind equalization
- Blind signal separation
- Blind spot
- Blinded
- Blinding
- Blindsight
- Blinking
- Blisks
- Blisters
- Blitz++
- Blob detection
- Blobs
- Bloch equations
- Bloch sphere
- Bloch's theorem
- Block
- Block acknowledgement
- Block and tackle
- Block cipher
- Block code
- Block design
- Block matrix
- Block paving
- Block size
- Block-level storage
- Blockchain
- Blocked rotor test
- Blocker
- Blocking
- Blocking antibody
- Blocks
- Blocks world
- Blood