Air Bladder (noun) Definition, Meaning & Examples

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noun
  1. a vesicle or sac containing air.
  2. a gas-filled sac located against the roof of the body cavity of most bony fishes, originally functioning only as a lung, now serving in many higher fishes to regulate hydrostatic pressure.
noun
  1. an air-filled sac, lying above the alimentary canal in bony fishes, that regulates buoyancy at different depths by a variation in the pressure of the air
  2. any air-filled sac, such as one of the bladders of seaweeds
    Air Bladder (noun) Definition, Meaning & Examples

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