noun Cleth·ri·on·o·mys \ˌklethrēˈänəmə̇s\

Definition of Clethrionomys

  1. :  a genus of rodents consisting of the red-backed mice

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of clethrionomys

New Latin, from clethriono- (modification of Greek kleithrion, diminutive of kleithron entrance of the windpipe, from kleiein to close) + -mys — more at close

Seen and Heard

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


capable of being understood in two ways

Get Word of the Day daily email!