1
a
: a membranous sac in animals that serves as the receptacle of a liquid or contains gas
especially
: urinary bladder
b
: a gas- or air-filled vesicle in certain algae and aquatic plants (such as rockweed) : air bladder sense b
2
: something (such as the rubber bag inside a football) resembling a bladder
Examples of bladder in a Sentence
Recent Examples on the Web
Sanders was all smiles on the New Heights podcast, which came in the wake of his recovery from bladder cancer.
—
Skyler Caruso, PEOPLE, 24 Sep. 2025
In addition to a hydration bladder, her pack contained an extra quart of water, a fleece layer and glove liners, a camera, and a few Balance Bars.
—Ted Katauskas, Outside, 23 Sep. 2025
Last month, in a press conference filled with product promotion, Sanders announced that he had been diagnosed with bladder cancer and was in remission.
—Daniel Libit, Sportico.com, 22 Sep. 2025
Trouble emptying the bladder completely.
—Jenna Anderson, Health, 18 Sep. 2025
See All Example Sentences for bladder
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Skyler Caruso, PEOPLE, 24 Sep. 2025
In addition to a hydration bladder, her pack contained an extra quart of water, a fleece layer and glove liners, a camera, and a few Balance Bars.
—Ted Katauskas, Outside, 23 Sep. 2025
Last month, in a press conference filled with product promotion, Sanders announced that he had been diagnosed with bladder cancer and was in remission.
—Daniel Libit, Sportico.com, 22 Sep. 2025
Trouble emptying the bladder completely.
—Jenna Anderson, Health, 18 Sep. 2025
See All Example Sentences for bladder
Cite this Entry
“Bladder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bladder. Accessed 30 Sep. 2025.
Copy CitationKids Definition
bladder
noun
blad·der
ˈblad-ər 
1
: a pouch in an animal in which a liquid or gas is stored
especially
: one into which urine passes from the kidneys and is stored temporarily until discharged by way of the urethra
2
: something resembling a bladder
especially
: a bag or container that can be blown up with air
Medical Definition
bladder
noun
blad·der
ˈblad-ər
1
: a membranous sac in animals that serves as the receptacle of a liquid or contains gas
especially
: urinary bladder
2
: a vesicle or pouch forming part of an animal body
the bladder of a tapeworm larva
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