D defs.my
Entry 1 sense Webster, 1913

cottonmouth

· IPA /kˈɑtənmˌaʊθ/
01 n. venomous semiaquatic snake (Agkistrodon piscivorus) of swamps in southern U.S.; -- called also water moccasin, cottonmouth moccasin, and co…
  1. 1.
    venomous semiaquatic snake (Agkistrodon piscivorus) of swamps in southern U.S.; -- called also water moccasin, cottonmouth moccasin, and cottonmouth water moccasin. It grows to a length of about 4 feet. The name refers to the whiteness of the lips and inside of the mouth. Also: water moccasin, cottonmouth moccasin, cottonmouth water moccasin