Bible Dictionaries
Air Cell

Webster's Dictionary

(1):

A cavity in the cellular tissue of plants, containing air only.

(2):

A receptacle of air in various parts of the system; as, a cell or minute cavity in the walls of the air tubes of the lungs; the air sac of birds; a dilatation of the air vessels in insects.

Bibliography Information
Webster, Noah. Entry for 'Air Cell'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​a/air-cell.html. 1828.