plural noun
Mus·​tel·​i·​dae | \ ˌməˈsteləˌdē \

Definition of Mustelidae

: a large, widely distributed, diverse family (superfamily Arctoidea synonym Canoidea) of relatively small, chiefly carnivorous animals that have usually short legs, a long, often thin body, thick fur, and anal scent glands and that include the weasel, badger, otter, mink, marten, polecat and wolverine

Note: The smallest member of the Mustelidae is the least weasel and the largest is the sea otter.

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!

History and Etymology for Mustelidae

New Latin, from Mustela, type genus + -idae

Keep scrolling for more

Learn More about Mustelidae

Statistics for Mustelidae

Cite this Entry

“Mustelidae.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Comments on Mustelidae

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


Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
Spell It

Can you spell these 10 commonly misspelled words?

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

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