air bladder
📖 中文释义
- [医] 气囊, 气泡
🔗 释义中的汉语词
📘 English Definition（英文释义）
- 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.
- A sac or bladder full of air in an animal or plant; also
- an air hole in a casting.