air bladder

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air bladder

n.
2. See float.

air bladder

n
1. (Zoology) ichthyol Also called: swim bladder an air-filled sac, lying above the alimentary canal in bony fishes, that regulates buoyancy at different depths by a variation in the pressure of the air
2. (Botany) any air-filled sac, such as one of the bladders of seaweeds

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]

air bladder

An air-filled sac in many fish that helps maintain buoyancy or, in some species, helps in respiration, sound production, or hearing. Also called swim bladder. See float.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.air bladder - an air-filled sac near the spinal column in many fishes that helps maintain buoyancyair 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
References in periodicals archive ?
eliminate existing roof air bladders, eliminate existing ravines where standing water, melting the bottom layer of roof patches; 4.
Gar use their air bladders as rudimentary lungs, and they can survive in warm, low-oxygen water that other kinds of fish can't.
In the course of conducting testing to determine the optimum air pressure for inflation of air bladders in football helmets to best reduce the transfer of impacts through the helmet, it was discovered that a significant number of helmets were unable to sustain inflated air pressure.
Using remote-inflated air bladders, the arm of the new Micro Premium lateral cutter positions itself remotely by creeping and climbing, clamps itself for precise cutting in vertical or horizontal orientation and feeds the cutting head a full four inches.
12), the author comments that primitive lungs "probably evolved from the air bladders found in fish.
He was then introduced to a new type of treatment, Type 1 Collagen, a dressing made from the air bladders of fish.