- baptism
- bar
- bar anchorage
- bar bender
- bar bending
- bar boring
- bar chart
- bar code
- bar cutter
- bar feed
- bar generator
- bar graph
- bar hole
- bar iron
- bar magazine
- bar magnet
- bar mat
- bar mill
- bar pattern
- bar scale
- bar screen
- bar shear
- bar sink
- bar solder
- bar spacing
- bar stock
- barium
- bark press
- Barkhausen effect
- barking
- barm
- Barnett effect
- barogram
- barometer gauge
- barometer reading
- barometric hypsometry
- barometrical
- barostat
- baroswitch
- barothermohygrogram
- barothermohygrograph
- barotropic
- barrack
- barrel arch
- barrel cam
- barrel drain
- barrel drop
- barrel spring
- barrel support
- barreler
- barreling
- barren gangue
- barren ground
- barren rock
- barretter
- barricade
- barrier coat
- barrier coating
- barrier film
- barrier layer
- barrier material
- barrier packaging
- barrier problem
- barrier wall
- barring gear
- barrow
- barter
- bartizan
- baryon number
- bas-relief
- basal
- basal data
- basal layer
- basal plane
- basalt
- basaltic
- basaltic lava
- basaltic stratum
- bascule bridge
- beamguide
- beams
- bean
- bear
- bearer
- bearer channel
- bearer service
- bearing angle
- bearing bar
- bearing block
- bearing bush
- bearing bushing
- bearing cage
- bearing cap
- bearing carrier
- bearing circle
- bearing compass
- bearing distance
- bearing insert
- bearing loads
- bearing lubrication