air sac

Definition of Air Sac in English :

see synonyms of air sac

Noun

1. air cell, air sac, alveolus

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

2. air sac

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

3. air sac

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

WordNet Lexical Database for English. Princeton University. 2010.

Air Sac

see synonyms of air sac

noun

1.

any of the membranous air-filled extensions of the lungs of birds, which increase the efficiency of gaseous exchange in the lungs

2.

any of the thin-walled extensions of the tracheae of insects having a similar function

Air Sac

see synonyms of air sac

any of the air-filled cavities in a bird's body, having connections to the lungs

Air Sac

see synonyms of air sac

n.

1. An air-filled space in the body of a bird that forms a connection between the lungs and bone cavities and aids in breathing and temperature regulation.

2. See alveolus.

3. A saclike, thin-walled enlargement in the trachea of an insect.

4. An inflatable pouch attached to the larynx in certain mammals, including the nonhuman great apes.

Air Sac

Noun

Air Sac

Air Sac

Air Sac

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