ilmakuoppa

listen to the pronunciation of ilmakuoppa
Finnisch - Türkisch
hava cebi
hava boşluğu
Finnisch - Englisch
air pocket
a local region of low atmospheric pressure, or a local downward current; especially one that causes an aircraft to lose height suddenly
An enclosed air space above a lake water surface in a cave Only accessible by diving Cave - Parts of Ref WM
Dead air spaces in concrete, which are also known as a void, are usually one millimeter, with entrained pockets being smaller
small bubble of air, gas bubble
A local downdraft or an abrupt reduction of headwind or increase in tailwind that causes an airplane to drop suddenly
a local region of low pressure or descending air that causes a plane to lose height suddenly
A downward air current that causes an aircraft to lose altitude abruptly. Also called air hole