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AIR SAC

(noun)
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Definitions

There are 3 meanings of the phrase Air Sac.

Air Sac - as a noun

A tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways

Synonyms (Exact Relations)
air cellalveolus

Any of the thin-walled extensions of the tracheae of insects

Any of the membranous air-filled extensions of the lungs of birds

Example Sentences

"Birds have air sacs that supplement the function of their lungs."
"The respiratory system of a reptile includes air sacs that aid in breathing."
"The therapist explained the purpose of the air sacs in the lungs during the session."
"The injured athlete had a punctured air sac, making it difficult for him to breathe."
"The veterinarian examined the bird's air sacs to check for any abnormalities."
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