About The Word Air sac
Learn about the word Air sac to help solve your crossword puzzle. Discover Air sac definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Air sac
| Air sac Definition And Meaning |
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What's The Definition Of Air sac?
[n] any of the membranous air-filled extensions of the lungs of birds
[n] any of the thin-walled extensions of the tracheae of insects [n] a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways Synonyms | Synonyms for Air sac: air cell | alveolus Related Terms | Find terms related to Air sac: See Also | bird | insect | lung | sac | sac Air sac In Webster's Dictionary \Air" sac`\ (Anat.)
One of the spaces in different parts of the bodies of birds,
which are filled with air and connected with the air passages
of the lungs; an air cell.
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