About The Word Air sac

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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 Meaning & Definition
Air sac Definition And Meaning

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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