Meaning Of The Word Air sac

Real Dictionary

What's the definition of Air sac? Find Air sac meanings, definitions and more at the Real Dictionary online.

Air sac Meaning

Air sac Definition
Air sac Definition

What's The Definition Of Air sac?

air sac in British English
any of the air-filled cavities in a bird's body, having connections to the lungs
noun: a sac containing air
noun: any of the membranous air-filled extensions of the lungs of birds, which increase the efficiency of gaseous exchange in the lungs

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