Last Updated:2025/11/21

(anatomy, usually of fish) A gas-filled sac within the bodies of most fish that variously acts as a float, lung, sound-producing organ or an aid to hearing.

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swim bladder

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Source Word

swim bladder

Noun
of fish usually
Japanese Meaning
魚の体内にあるガスで満たされた嚢で、主に浮力調整、呼吸補助、音響伝達などの役割を果たす解剖学的構造です。
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解剖の際、生物学者は感染の兆候がないかマスの浮き袋を慎重に調べた。

plural

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