Definitions

from The American HeritageĀ® Dictionary of the English Language, 4th Edition

  • n. See air bladder.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 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.

from the GNU version of the Collaborative International Dictionary of English

  • n. an air bladder of a fish.

from The Century Dictionary and Cyclopedia

  • n. Same as swimming-bladder.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an air-filled sac near the spinal column in many fishes that helps maintain buoyancy

Etymologies

Sorry, no etymologies found.

Examples

  • Manatees and dugongs float effortlessly in hydrostatic equilibrium, not by means of a swim bladder as fish do see below, but through being equipped with heavy bones as a counterweight to the natural buoyancy of their blubber.

    THE GREATEST SHOW ON EARTH

  • The swim bladder is perhaps the major key to the teleostsā€™ success, and it is well worth a digression to explain it.

    THE GREATEST SHOW ON EARTH

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