- book capacitor
- booster
- booster transformer
- bore
- borosilicate glass
- bottle rack
- bottom feed
- braided wire
- brake test
- branch cutout
- branch duct
- branch joint
- Bravais biplate
- bread cooling
- breathing mode
- bright dip
- brine chiller
- brine cooling
- brine heater
- breakdown delay
- breather
- breather plug
- breeches joint
- bremsstrahlung
- bridge arm
- brightness temperature
- brine accumulator
- brine application
- brine characteristic
- brine circulation
- brine contaminant
- brine drainage
- brine fog
- brine injection
- brine main
- brine reconcentration
- brine spraying
- brine stripper
- brine valve
- Britannia joint
- Broquinda system
- Brownian agitation
- brush rocker
- brush yoke
- brushless
- bubbling
- brine solution
- brine thermostat
- broadside array
- broken ice
- brominated freon
- bronze
- brush shift
- bubble boiling
- bubble point
- buck
- bucking voltage
- building-up
- bull ring
- bucking coil
- buffer element
- bulk conductance
- bulk freezing
- bulk viscosity
- bunch
- bunch conductor
- bunching
- bunker icing
- bunsen burner
- Burgers vector
- burner mouth
- bus line
- bus reactor
- busbar
- braking test
- branch circuit
- brass
- Brayton cycle
- bread cooler
- breakdown diode
- breakdown voltage
- breaking current
- bridge transition
- bridging
- Brillouin zone
- brine addition
- brine charge
- brine circuit
- brine composition
- brine contamination
- brine density
- brine flow
- brine froster
- brine inhibitor
- brine mist
- brine piping
- brine sparge
- brine system
- brinelling
- broadcasting