- base gas
- base grease
- base load
- base map
- base ring
- base value
- BASF process
- bash
- basic acetate
- basic carbonate
- basic intrusive
- basic investment
- basic price
- basic Q
- basic sediment
- basic slag
- basining
- basket substutute
- bassanite
- batai
- batch production
- batch treating
- bateau
- batt
- bauxite
- bauxite treating
- bay head
- beach gravel
- beach ridge
- bead test
- beam caliper
- beam compass
- bank reef
- banked formation
- banking
- bar
- bar coater
- barium chloride
- barium peroxide
- barium release
- barium sulphate
- baroboo bar
- barometric change
- barometric leveling
- barracks shale
- barren sand
- barrier beach
- barrier coat
- barrier lake
- barrier pillar
- barrier resin
- barycenter
- baryta
- baryte
- basal conglomerate
- basalt dyke
- basalt slate
- basaltic column
- basaltic structure
- basanite
- bean
- bean hanger
- bearing bolt
- bearing face
- bearing metal
- bearing shell
- bearing sleave
- bearing surface
- bed surface
- bedded deposit
- bedded vein
- bedding compound
- bedding fissility
- beehive shelf
- beet
- belian
- bell cap
- bell jar
- bell metal
- bellite
- bellows joint
- bellows value
- belt drier
- belt dryer
- belt lace
- bar tin
- Barbados tar
- barbituric
- barchan
- bare
- bareboat charter
- barium oxide
- Barkausen effect
- barometric condenser
- barometry
- barras
- barrel
- barreling station
- Barremian stage
- barren lode