airpocket
nounUK /ˈeəˌpɒkɪt/
US /ˈerˌpɑːkɪt/
A small space filled with air inside something.
The soap had an airpocket that made it float.
OTHER MEANINGS
2. A downward rush of air that makes an airplane drop suddenly.
The plane hit an airpocket and everyone felt their stomachs jump.
3. A pocket of air trapped in a pipe or machine that stops liquid from flowing.
The plumber bled the radiator to clear an airpocket.
4. A small enclosed space of air in soil or rock.
Roots need airpockets in the soil to breathe.
5. A small pouch or pocket designed to hold air, as in inflatable items.
The raft has several airpockets that keep it afloat.