Definition of cottonmouth in English:


Syllabification: cot·ton·mouth
Pronunciation: /ˈkätnˌmouTH


  • 1A large, dangerous semiaquatic pit viper that inhabits lowland swamps and waterways of the southeastern US. When threatening, it opens its mouth wide to display the white interior. Also called water moccasin.
    • Agkistrodon piscivorus, family Viperidae
    More example sentences
    • Dogs bitten by any of Texas' dangerous snakes, including rattlesnakes, cottonmouths, copperheads and coral snakes, often suffer unnecessarily.
    • It's because of birds that I know the difference between a sugar maple and a red maple, a diamondback water snake and a cottonmouth, an American lady and a painted lady.
    • This is the only product that can neutralize toxins from rattlesnakes, cottonmouths, and copperheads.
  • 2 (also cotton mouth) informal Dryness of the mouth: I often have cotton mouth and a headache when I wake up

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used to address an English nobleman