HyperDic: swim_bladder

English > 1 sense of the expression swim bladder:
NOUNanimalswim bladder, air bladder, floatan air-filled sac near the spinal column in many fishes that helps maintain buoyancy
English > swim bladder: 1 sense > noun 1, animal
MeaningAn air-filled sac near the spinal column in many fishes that helps maintain buoyancy.
Synonymsair bladder, float
BroadersacA structure resembling a bag in an animal
Spanishvejiga natatoria
Catalanbufeta natatòria

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