A large, poisonous, olive-brown pit viper (Agkistrodon piscivorus) with dark crossbars, found along or in rivers and swamps in the SE U.S.; cottonmouth: often confused with various harmless snakes, esp. several water snakes (genus Natrix)
venomous semiaquatic snake of swamps in southern United States
Find another word for cottonmouth. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for cottonmouth, like: water moccasin, cottonmouth moccasin and agkistrodon-piscivorus.