gasmask
nounUK /ˈɡæs mɑːsk/
US /ˈɡæs mæsk/
A gasmask is a special cover you wear over your face to keep bad air away.
The firefighter put on a gasmask before entering the smoky building.
RELATED WORDS
OTHER MEANINGS
2. A device worn by soldiers to protect against poison gas in war.
Soldiers in the trench were ordered to put on their gasmasks.
3. A protective breathing device used by workers in dangerous chemical environments.
The factory workers wore gasmasks while handling the chemicals.
4. A mask used by divers or miners to supply clean air.
The miner relied on his gasmask when the tunnel filled with dust.