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Synonyms

swim bladder

American  

noun

  1. air bladder.


swim bladder British  

noun

  1. ichthyol another name for air bladder

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of swim bladder

First recorded in 1830–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Otophysan fish improved this pathway by adding small bony "ossicles" that connect the air bladder, often mistakenly called the swim bladder, to the inner ear.

From Science Daily Nov. 3, 2025

They found that the fish, Danionella cerebrum, drums out a powerful rhythm on an organ called a swim bladder.

From BBC Feb. 26, 2024

The vaquitas are caught and drown in illegal gill nets set for Totoaba, a Gulf fish whose swim bladder is considered a prized delicacy in China, worth thousands of dollars per pound.

From Seattle Times Aug. 30, 2023

Each flake of ancient paint was treated with a tiny drop of isinglass, a natural collagen obtained from the swim bladder of a sturgeon, which was applied, heated and pressed down to match the surface.

From New York Times Dec. 19, 2016

On the line of the ancestry of most modern fishes its duct was closed and it became the swim bladder used in flotation and balancing.

From The Elements of Geology by Norton, William Harmon

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