cotton rat

noun

Definition of cotton rat

: any of a genus (Sigmodon) of small-eared, omnivorous rats that are found chiefly in grassy habitats from the U.S. and Mexico to Brazil, are sometimes destructive to crops (such as cotton, alfalfa, and corn), and have S-shaped molars — see hispid cotton rat

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of cotton rat

1835, in the meaning defined above

Keep scrolling for more

Learn More about cotton rat

Time Traveler for cotton rat

Time Traveler

The first known use of cotton rat was in 1835

See more words from the same year

Statistics for cotton rat

Cite this Entry

“Cotton rat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cotton%20rat. Accessed 20 Oct. 2020.

Comments on cotton rat

What made you want to look up cotton rat? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!