cotton rat

noun

: 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

Word History

First Known Use

1835, in the meaning defined above

Time Traveler
The first known use of cotton rat was in 1835

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!

Dictionary Entries Near cotton rat

Cite this Entry

“Cotton rat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cotton%20rat. Accessed 27 May. 2024.

Love words? Need even more definitions?

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