water moccasin
water moc·ca·sin
noun \-ˌmäk-ə-sən\Definition of WATER MOCCASIN
: a venomous semiaquatic pit viper (Agkistrodon piscivorus) of the southern United States closely related to the copperhead—called also cottonmouth, cottonmouth moccasin
Illustration of WATER MOCCASIN
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