cottonmouth
/ˈkɒtənmaʊθ/(亦作 cottonmouth moccasin)
noun
1- a large, dangerous semiaquatic pit viper which inhabits lowland swamps and waterways of the south-eastern US. When threatening it opens its mouth wide to display the white interior.棉口蛇, 水蝮蛇。亦称 WATER MOCCASIN.
1.1
- Agkistrodon piscivorus, family Viperidae.拉丁名 Agkistrodon piscivorus,蝰科。