- bronzite
- bronzse of the Zheng State
- brooch
- brood
- brooder house
- brood hen house
- brooding cages
- Brookes'formula
- Brookhaven National Lab
- Brookhaven National Laboratory
- Brookhaven Protein Data Bank
- brookite
- Brooklyn
- Brooklyn Botanic Garden of New York
- Brooklyn Bridge
- Brooklyn Children's Museum
- Brooklyn Museum
- Brook rearrangement
- Brooks Adams
- Brooks comet
- Brooks Range
- Brook Taylor
- broomcorn
- broom-corn millet
- broomcorn millet blast