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
The tumor blocked my ureter, the tube that connects the kidney to the bladder.
—
Lucy Notarantonio, MSNBC Newsweek, 14 June 2025
Studies have found that the PAC in cranberry juice extract (not the whole berry) are uniquely effective in anti-adhesion and the prevention of bacteria like E. coli adhering to the walls of the inside of the bladder.
—Rhiannon Frater, USA Today, 3 June 2025
Overactive bladder is a condition where the bladder squeezes urine out at the wrong time, according to the U.S. National Library of Medicine.
—Korin Miller, Flow Space, 30 May 2025
The disorder affects roughly 0.2 percent of people in their seventies and causes gait issues, bladder control issues, and cognitive difficulties.
—Andy Greene, Rolling Stone, 23 May 2025
See All Example Sentences for bladder
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Lucy Notarantonio, MSNBC Newsweek, 14 June 2025
Studies have found that the PAC in cranberry juice extract (not the whole berry) are uniquely effective in anti-adhesion and the prevention of bacteria like E. coli adhering to the walls of the inside of the bladder.
—Rhiannon Frater, USA Today, 3 June 2025
Overactive bladder is a condition where the bladder squeezes urine out at the wrong time, according to the U.S. National Library of Medicine.
—Korin Miller, Flow Space, 30 May 2025
The disorder affects roughly 0.2 percent of people in their seventies and causes gait issues, bladder control issues, and cognitive difficulties.
—Andy Greene, Rolling Stone, 23 May 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 Jun. 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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