Swim Bladder Definition

noun
A gas-filled sac in the dorsal portion of the body cavity of most bony fishes, giving buoyancy to the body and used as an accessory, lunglike organ in lungfishes.
Webster's New World
Alternative spelling of swim bladder.
Wiktionary
Synonyms:

Other Word Forms of Swim Bladder

Noun

Singular:
swim bladder
Plural:
swim-bladders

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Unscrambles

swim bladder