Definition of swim bladder Swim bladder

swim blad•der

We found 3 definitions of swim bladder from 3 different sources.

What does swim bladder mean?

Noun
swim bladder - an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
		air bladder, float

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swim bladder (Noun)
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.

swim bladder
Internal organ filled with air with which fish can control their buoyancy.

swim bladder in sign language