air cell

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Air cell

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air cell (plural air cells)

Used other than as an idiom: see air cell.

An air cell formed as the egg cooled and dried
(medicine) A terminal dilation of the bronchiole in lungs or similar organs where gas exchange occurs.
(medicine) Spaces that contain air in the bones of the skull.
(mechanical engineering) A prechamber in an indirect injection internal combustion engine.
(electrical engineering) An electrochemical cell that uses air as a terminal, such as the metal-air electrochemical cell.

air pocket at the bottom end of an egg