Meaning of AIR CELL
| Pronunciation: | | ehr sel
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 WordNet Dictionary |
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| | Definition: | |
[n] a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways |
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| | Synonyms: | | air sac, alveolus |
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| | See Also: | | lung, sac | |
| Webster's 1913 Dictionary |
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| | Definition: | | \Air" cell`\
1. (Bot.) A cavity in the cellular tissue of plants,
containing air only.
2. (Anat.) 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.
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