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air sac Definition

air sac

noun

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

air sac Usage Examples

Preposition: of

  • lung: Exposure to these droplets can lead to infection in the air sacs of the lungs.

Adjective modifier

  • tiny: At the end of the airways are clusters of tiny air sacs.
  • small: Inside the lungs the bronchi divide into smaller and smaller airways until they end up as small air sacs called alveoli.
  • rear: Air enters the rear air sacs, passes to the lung and then leaves via the front air sacs.