- black hole X-ray binaries
- black horse dance
- black humour
- black jaundice
- Black, Joseph
- black king fish
- Black Lacquer Book Cabinet with Mother-of-pearl Inlays Pattern
- black-lacquer brush pot inlaid with multi-precious objects in flower designs
- Black-lacquered Rectangular Dish Inlaid with Interlocking Lotus Design in Mother-of-pearl
- Black-lacquered Sutra Case Inlaid with Floral and Bird Designs in Mother-of-pearl
- blacklead
- Black Legend
- black letter
- black liquor combustion
- black liquor evaporation
- black liquor extraction
- black liquor from paper industry
- black list
- black locust
- Blackman function
- black matrix
- black matrix screen
- Black Mesa Coal Slurry Pipeline
- black metal ores
- Black Mirror