Dictionary Home » Dictionary Definitions » swim bladder

swim bladder

a gas-filled sac in the dorsal portion of the body cavity of most bony fishes, giving buoyancy to the body and used as an accessory, lunglike organ in lungfishes

See swim bladder in American Heritage Dictionary 4

noun

See air bladder.

Learn more about swim bladder

swim bladder science

link/cite print suggestion box

swim bladder

More from YD