giant salamander
noun
1- a very large salamander that is native to North America and east Asia, in particular娃娃鱼, 大鲵（产于北美和东亚体型大的蝾螈）, 尤指：
1.1
- a permanently aquatic salamander (three species in the family Cryptobranchidae), e.g. the American hellbender水栖蝾螈（隐鳃鲵科3种）。
1.2
- a terrestrial salamander (three species in the family Dicamptodontidae), of western North America陆栖蝾螈（北美洲西部, 陆巨螈科3种）。