n.large salamander of North American rivers and streams
同义词：mud puppyCryptobranchus alleganiensis
英汉双解大词典
hellbender/ˈhɛlˌbɛndə/
1.
N（名词）
a very large dark grey aquatic salamander, Cryptobranchus alleganiensis, with internal gills: inhabits rivers in E and central US: family Cryptobranchidae (美国)鲵鱼