Achordata

plural noun

Achor·​da·​ta
¦āˌ-kȯr-ˈdä-tə,
-ˈdā-tə
: an arbitrary subdivision of the animal kingdom including all animals lacking a notochord
opposed to Chordata
achordate
(ˈ)ā-¦kȯr-ˌdāt
-dət
adjective or noun

Word History

Etymology

New Latin, from a- entry 2 + Chordata

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of Achordata was in 1889

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 Achordata

Cite this Entry

“Achordata.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Achordata. Accessed 22 Nov. 2024.

Love words? Need even more definitions?

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