Air-sacs, n.
Air bags in birds, which are certain receptacles of air, or vesicles lodged in the fleshy parts, in the hollow bones and in the abdomen, which all communicate with the lungs.
Found poetry from the first edition of Noah Webster's
American Dictionary of the English Language (1828).
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Air bags in birds, which are certain receptacles of air, or vesicles lodged in the fleshy parts, in the hollow bones and in the abdomen, which all communicate with the lungs.