Bladder

Anatomy, Zoology.

a membranous sac or organ serving as a receptacle for a fluid or air.
urinary bladder.

Pathology. a vesicle, blister, cyst, etc., filled with fluid or air.
Botany. an air-filled sac or float, as in certain seaweeds.
something resembling a bladder, as the inflatable lining of a football or basketball.
an air-filled sac, usually made to resemble a club, used for beatings in low comedy, vaudeville, or the like.
Contemporary Examples

The Heroes of Iraq Justin Green March 19, 2013
The Queen of the French Kitchen Katie Baker March 25, 2014
Obama vs. The World Richard Wolffe September 20, 2009
Casey Kasem’s Family’s Top 40 Meltdown Moments Tim Teeman June 2, 2014
Whip It: Secrets of a Dominatrix Justin Jones November 24, 2014

Historical Examples

Nat the Naturalist G. Manville Fenn
The Manxman Hall Caine
The Cook and Housekeeper’s Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches, Mary Eaton
The Manxman Hall Caine
The Works of Aristotle the Famous Philosopher Anonymous

noun
(anatomy) a distensible membranous sac, usually containing liquid or gas, esp the urinary bladder related adjective vesical
an inflatable part of something
a blister, cyst, vesicle, etc, usually filled with fluid
a hollow vesicular or saclike part or organ in certain plants, such as the bladderwort or bladderwrack
n.

bladder
(blād’ər)

Read Also:

Bladder-campion
a European campion, Silene vulgaris (or S. cucubalus), of the pink family, having white flowers with an inflated calyx. Historical Examples Chambers’s Twentieth Century Dictionary (part 2 of 4: E-M) Various noun a European caryophyllaceous plant, Silene vulgaris, having white flowers with an inflated calyx
Bladder-fern
any of several ferns of the genus Cystopteris, having pinnate leaves and growing in rocky areas. noun a small fern, Cystoperis fragilis, with graceful lanceolate leaves, typically growing on limestone rocks and walls
Bladder-kelp
any of several species of giant kelp bearing prominent flotation bladders.

Bladder-ketmia
noun another name for flower-of-an-hour
Bladdernose
hooded seal. noun another name for hooded seal