1. A flexible sac that can expand and contract and that holds liquids or gases.
  2. Specifically, the urinary bladder.
  3. A hollow, inflatable organ of a plant.
  4. The inflatable bag inside various balls used in sports, such as footballs and rugby balls.
  5. A sealed plastic bag that contains wine and is usually packaged in a cask.
  6. Anything inflated, empty, or unsound.


  1. To swell out like a bladder with air; to inflate.
  2. To store or put up in bladders.
    bladdered lard

The above text is a snippet from Wiktionary: bladder
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