bladder

Definitions

• (zoology) A flexible sac that can expand and contract and that holds liquids or gases.
• (anatomy) Specifically, the urinary bladder.
• (botany) A hollow, inflatable organ of a plant.
• The inflatable bag inside various balls used in sports, such as footballs and rugby balls.
• A sealed plastic bag that contains wine and is usually packaged in a cask cask.
• (figurative) Anything inflated, empty, or unsound.