air bladder : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: air bladder	by the DICT Development Group
2 results for air bladder
From WordNet (r) 3.0 (2006) [wn]:
air bladder n an air-filled sac near the spinal column in many fishes that helps maintain buoyancy Synonym(s): air bladder, swim bladder, float
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Air bladder \Air" blad`der\ 1. (Anat.) 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 esophagus. 2. A sac or bladder full of air in an animal or plant; also an air hole in a casting.