Look up bladder in Wiktionary, the free dictionary.

Bladder may refer to:

• A bladder is a pouch or other flexible enclosure with waterproof or gasproof walls

In Anatomy:

• Urinary bladder, which collects urine for excretion
• Gall bladder, which stores bile for digestion
• Gas bladder, an internal organ that contributes to the ability of a fish to control its buoyancy

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