• n.
    ⦿any of the membranous air-filled extensions of the lungs of birds
    lexical concept

Semantic relations

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Diagram
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Lexical context

wn:part of speechnoun
ontolex:lexicalized senseenl:air sac
wn:interlingual indexili:i48632

Other

skos:is in schemeOpen English WordNet
rdfs:labelair sac