Swim-bladder meaning

A gas-filled structure in many fishes that functions to maintain buoyancy and, in some species, to aid in respiration or to produce sound.
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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.
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A gas-filled structure in many fishes that functions to maintain buoyancy and, in some species, to aid in respiration or to produce sound.
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(anatomy, usually of fish) 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.
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Alternative spelling of swim bladder.
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Swim-bladder Sentence Examples

  • These words are for (I) the swim-bladder of a fish; (2) a narrow stretch of water between an inland sea and the ocean, or between an island and the mainland, &c., cf.

  • They do not have a swim bladder like other fish.

  • Often their gills collapse and their swim bladder can rupture due to the sudden change in pressure on their bodies.

  • As in the analogous swim-bladder of fishes, the gas in the pneumatophore can be secreted or absorbed, whereby the specific gravity of the body can be diminished or increased, so as to cause it to float nearer the surface or at a deeper level.

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