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Air Sac

nounverified·updated May 18, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

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

Framework senses

3 senses across 1 framework

Wordset Dictionary3 sensesview framework →

§1: any of the membranous air-filled extensions of the lungs of birds
§2: any of the thin-walled extensions of the tracheae of insects
§3: a tiny sac for holding air in the lungs