A bag or sac in animals, which serves as the receptacle of some fluid; as, the urinary bladder; the gall bladder; -- applied especially to the urinary bladder, either within the animal, or when taken out and inflated with air.

Anything inflated, empty, or unsound.

The part of the body that holds urine.

A muscular pouch that stores urine, comprised of the detrusor muscle, a valve-like internal sphincter, and other tissues.

To swell out like a bladder with air; to inflate.

an inflatable inner tube in a kite used to give the kite shape and floatation. Bladders must be inflated or pumped up by hand.

the part of a gas life jacket that inflates during firing and provides the bouyancy.

a bag of tissue in the bodies of many animals which can be inflated to receive or hold liquids.

A pouch within a Buoyancy Compensator which holds the amount of air the diver desires to provide proper buoyancy.

The balloon-like bag that holds your wee until you're ready to go to the toilet

a bag that fills with air

a pouch or other flexible enclosure