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English definition of “air bladder”

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air bladder

noun [C] uk   specialized us  
a small bag of air or gas inside a fish's body, that helps it to float or breathe
Translations of “air bladder”
in Chinese (Traditional) 魚鰾(幫助魚控制浮沉和呼吸)…
in Chinese (Simplified) 鱼鳔(帮助鱼控制浮沉和呼吸)…
(Definition of air bladder from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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