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Dictionary


air' blad"der




1. a vesicle or sac containing air.
2. Also called gas bladder, swim bladder. Ichthyol.a gas-filled sac located against the roof of the body cavity of most bony fishes, originally functioning only as a lung, now serving in many higher fishes to regulate hydrostatic pressure.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

air bellair blast
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