- brown earth
- brown heamatite
- brownout
- bruiser
- brunt
- brush lines
- brush ring
- brushed
- bucket wheel
- bucking force
- bucking regulator
- buckling load
- buckling stress
- budget expenditures
- brace
- brace rod
- braced
- braced arch
- braced frame
- bracer
- braces
- brachistochrone problem
- bracing
- bracing frame
- bracing slab
- bracing strut
- bracket bolt
- bracket scaffold
- bracket standard
- brackish
- brackish water
- brad
- brae
- Bragg spectrometer
- braid
- braid insulation
- braided hose
- braiding
- brain
- brainstorming
- brake
- brake adjuster
- brake assembly
- brake block
- brake caliper
- brake control
- brake coupling
- brake disk
- brake horsepower
- brake jaw
- brake light
- brake lining
- brake link
- brake mast
- brake parachute
- brake pin
- brake plate
- brake rigging
- brake rotor
- brake scotch
- brake shield
- brake shoe
- brake soring
- brake strap
- brake tester
- brake testing
- brake valve
- braking
- braking action
- braking clamp
- braking distance
- braking governor
- braking load
- braking power
- braking system
- braking torque
- bran
- bran truss
- branch conduit
- branch fault
- branch line
- branch off
- branch order
- branch point
- branch tube
- branched
- branched circuit
- branching fault
- branching process
- branchy-syncline
- branding
- brassy
- braun tube
- braze
- brazing lamp
- brazing tongs
- bread
- bread gauge
- breadboard construction
- breading strength