swim bladder


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

swim bladder

n.
A gas-filled structure in many fishes that functions to maintain buoyancy and, in some species, to aid in respiration or to produce sound. Also called air bladder, gas bladder.

swim bladder

n
(Zoology) ichthyol another name for air bladder1

air′ blad`der


n.
1. a vesicle or sac containing air.
2. an air-filled sac at the top of the body cavity in bony fishes, serving in most to regulate hydrostatic pressure. Also called swim bladder.
[1725–35]

swim bladder

(swĭm)
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.swim bladder - an air-filled sac near the spinal column in many fishes that helps maintain buoyancyswim bladder - an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
sac - a structure resembling a bag in an animal
Translations

swim bladder

nSchwimmblase f

swim bladder

n (Zool) → vescica natatoria
References in periodicals archive ?
A A calf's stomach B A sturgeon's swim bladder C Albumen (egg white) D A sheep's gall bladder QUESTION 15 - for 15 points: Bizet's opera The Pearl Fishers is set on which island?
Some reports say the totoaba's swim bladder can fetch as much as US$10,000 per kg in Baja California.
This feature, termed the Weberian apparatus (WA), is an accessory hearing organ that transduces sound from the swim bladder to the inner ear.
A swim bladder is a gas-filled sac that lets a fish rise, sink, or stay at one depth.
While gelatin and its derivatives are mainly obtained from bovine hide and porcine skin, isinglass and bone glues are largely derived from the dried swim bladder of fish and bovine bones.
A few years later it expanded to include caviar and isinglass, a product used in the clarification of wine and beer, made from the fish's swim bladder.
Gags will relent once you get them up out of the structure, but jacks don't have a swim bladder and they will fight you all the way up.
They said the midshipman male fish lets out a distinctive sound by using its swim bladder to let the female fish knew they are seeking a mate.
Experts said the noise could be caused by male midshipman fish which produce a droning from their swim bladder to attract females.
These are usually made from isinglass, an extract from the swim bladder of the sturgeon fish.
Sometimes the swim bladder develops a problem and this means that a fish can struggle to stay the right way up.