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cottonmouth

American  
[kot-n-mouth] / ˈkɒt nˌmaʊθ /

noun

cottonmouths plural
  1. a venomous snake, Agkistrodon (Ancistrodon ) piscivorus, of swamps in southeastern U.S., that grows to about 4 feet (1.2 meters).


cottonmouth British  
/ ˈkɒtənˌmaʊθ /

noun

  1. another name for the water moccasin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Inflected Forms

noun

Etymology

Origin of cottonmouth

1825–35, cotton + mouth, so called from the whiteness of its lips and mouth

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Fortune said he’d seen plenty of cottonmouth snakes and rattlesnakes in Texas, and he’d once come across a 5-foot bullsnake.

From Washington Post • Jan. 3, 2023

He spends a lot of time helping panicked newcomers, who tend to think every snake they come across is a cottonmouth that they need to kill.

From Scientific American • Sep. 18, 2022

And the previous homeowners had found venomous snakes on the property, including a cottonmouth coiled by the pool.

From Scientific American • Sep. 18, 2022

This federally owned land, essentially a scrubby marsh with partially waterlogged woodland, home to bears and cottonmouth snakes, spans around 250,000 acres.

From The Guardian • Mar. 7, 2019

“I never heard of a cottonmouth with sparkles on its tail.”

From "Hoot" by Carl Hiaasen

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