Top definition
An enclosed air space between the water surface and the roof of a cave 10. 2. Part of a flooded passage where the ceiling rises above the water level to create an air pocket isolated from the rest of the cave 9

taken from (
Cave divers oftenly surface in an air bell to rest.
by interpretation_bridge April 24, 2011
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug