plural of air cell

Used other than figuratively or idiomatically: see air cell. / (medicine) A terminal dilation of the bronchiole in lungs or similar organs where gas exchange occurs.

(sports, soccer, golf, snooker etc.) A failed attempt to strike the ball.

plural of dead-air space

plural of sex aid

A (generally military) airplane used to refuel a second aircraft during flight.

plural of band-aid solution

A temporary solution.

flag carrier (An airline company that is registered in a given country)

(slang) A flatus; an emission of digestive gases from the anus.