boyau /bwoˈyō, bwäˈyō or boiˈō/ (fortification)

A communication trench

• nitrifies
• nitrify
• nitrifying
• nitrile
• nitriles
• nitrite
• nitrites
• nitro
• nitro-
• nitroaniline
• nitrobacteria
• nitrobenzene
• nitrobenzenes
• nitrocellulose
• nitrocelluloses
• nitro-compound
• nitro-compounds
• nitrocotton
• nitrocottons
• nitro-derivative
• nitro-derivatives
• nitrogen
• nitrogenase
• nitrogenases
• nitrogen cycle