airtank
nounUK /ˈeə.tæŋk/
US /ˈer.tæŋk/
A tank is a big container that holds air.
The diver carried an airtank on his back so he could breathe underwater.
RELATED WORDS
OTHER MEANINGS
2. A pressurized container of air used to power tools or machinery.
The mechanic hooked the airtank to the pneumatic drill.
3. A storage tank for compressed air in a vehicle's brake or suspension system.
The truck's airtank needed to be drained of moisture.
4. A small portable tank supplying breathable air for firefighters or rescue workers.
The firefighter checked her airtank before entering the building.