water moc·ca·sin /-ˌmɑkəsən/ 名詞
Wa·ter moc·ca·sin Zool. A venomous North American snake (Ancistrodon piscivorus) allied to the rattlesnake but destitute of a rattle. It lives in or about pools and ponds, and feeds largely of fishes. Called also water snake, water adder, water viper.
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water moccasin
n 1: venomous semiaquatic snake of swamps in southern United
States [syn: cottonmouth, cottonmouth moccasin, Agkistrodon
piscivorus]
2: any of numerous North American water snakes inhabiting fresh
waters