Lexic.us

Definition of Air bladder

1. Noun. An air-filled sac near the spinal column in many fishes that helps maintain buoyancy.

Definition of Air bladder

1. Noun. An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density. ¹

¹ Source: wiktionary.com

Medical Definition of Air bladder

1. 1. An air sac, sometimes double or variously lobed, in the visceral cavity of many fishes. It originates in the same way as the lungs of air-breathing vertebrates, and in the adult may retain a tubular connection with the pharynx or oesophagus. 2. A sac or bladder full of air in an animal or plant; also an air hole in a casting. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Air Bladder

Other Resources: