bladder


noun

  1. Anatomy, Zoology.
    1. a membranous sac or organ serving as a receptacle for a fluid or air.
    2. urinary bladder.
  2. Pathology. a vesicle, blister, cyst, etc., filled with fluid or air.
  3. Botany. an air-filled sac or float, as in certain seaweeds.
  4. something resembling a bladder, as the inflatable lining of a football or basketball.
  5. an air-filled sac, usually made to resemble a club, used for beatings in low comedy, vaudeville, or the like.

noun

  1. anatomy a distensible membranous sac, usually containing liquid or gas, esp the urinary bladderRelated adjective: vesical
  2. an inflatable part of something
  3. a blister, cyst, vesicle, etc, usually filled with fluid
  4. a hollow vesicular or saclike part or organ in certain plants, such as the bladderwort or bladderwrack
n.

Old English blædre (West Saxon), bledre (Anglian) “(urinary) bladder,” also “blister, pimple,” from Proto-Germanic *blaedron (cf. Old Norse blaðra, Old Saxon bladara, Old High German blattara, German Blatter, Dutch blaar), from PIE *bhle- “to blow” (see blast). Extended senses from early 13c. from animal bladders used for buoyancy, storage, etc.

n.

  1. Any of various distensible membranous sacs, such as the urinary bladder, that serve as receptacles for fluid or gas.
  2. A blister, pustule, or cyst filled with fluid or air; vesicle.

  1. A sac-shaped muscular organ that stores the urine secreted by the kidneys, found in all vertebrates except birds and the monotremes. In mammals, urine is carried from the kidneys to the bladder by the ureters and is later discharged from the body through the urethra.
  2. An air bladder.

A stretchable saclike structure in the body that holds fluids. The term is used most often to refer to the urinary bladder, which is part of the excretory system. Another kind of bladder is the gallbladder.

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