an·​iso·​dac·​ty·​lous | \ -¦daktələs \

Definition of anisodactylous

: having unequal toes used especially of passerine and picarian birds having three toes turned forward and one backward

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 anisodactylous

1828, in the meaning defined above

History and Etymology for anisodactylous

anis- entry 1 + -dactylous

Keep scrolling for more

Learn More about anisodactylous

Time Traveler for anisodactylous

Time Traveler

The first known use of anisodactylous was in 1828

See more words from the same year

Statistics for anisodactylous

Cite this Entry

“Anisodactylous.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Comments on anisodactylous

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


Test Your Vocabulary

February 2021 Words of the Day Quiz

  • squirrel in winter
  • Which is a synonym of perdure?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

 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!