- battery room
- battery switch
- battery vehicle
- batting down
- batwing antenna
- baud rate
- baum jig
- bavin
- bay bar
- bay delta
- bayonet
- bayonet cap
- bayonet catch
- bayonet joint
- bayonet socket
- bayrib
- bazaar
- be grounded
- be live
- be resilient
- beach plain
- beaching
- beacon light
- bead bevel
- bead capacitor
- bead core
- bead machine
- bead over
- bead weld
- beaded vein
- beadflush
- beading machine
- beadlike
- beak
- beam aerial
- beam anchor
- beam angle
- bass boost
- bass cut
- batch code
- batch crust
- batch distillation
- batch plant
- batch process
- batch size
- batch stone
- batch test
- batch variation
- batched water
- batching
- batching hopper
- batching scales
- batchwise operation
- bath atmosphere
- bath-house
- bathe
- bathing compartment
- batholith
- bathroom
- bathyscaph
- bathythermograph
- battened partition
- battery
- battery box
- battery carrier
- battery chamber
- battery connector
- battery limits
- battery mould
- battery post
- battery resistance
- battery tester
- batwing dipole
- baudelot cooler
- baulk
- bay
- bayonet holder
- bayou
- bazooka
- beach
- beach deposit
- beacon message
- bead
- bead transistor
- beads
- beak iron
- beam
- beam antenna
- beam blank
- beam blanking
- beam compasses
- beam current
- beam deflecting
- beam flange
- beam focusing
- beam jitter
- beam return
- beam splitter
- beam test
- beam tilt