Sarcopterygii

plural noun
Sar·​cop·​te·​ryg·​ii | \ ˌsär-ˌkäp-tə-ˈri-jē-ˌī How to pronounce Sarcopterygii (audio) \

Definition of Sarcopterygii

: a subclass or other division of bony fishes (such as the coelacanth) that have paired, lobed, fleshy fins somewhat resembling limbs, that may be ancestral to the terrestrial vertebrates, and that have existed since the Devonian but are now largely extinct — compare actinopterygii

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 Sarcopterygii

1962, in the meaning defined above

Keep scrolling for more

Learn More About Sarcopterygii

Time Traveler for Sarcopterygii

Time Traveler

The first known use of Sarcopterygii was in 1962

See more words from the same year

Dictionary Entries Near Sarcopterygii

sarcopterygian

Sarcopterygii

sarcoptic mange

See More Nearby Entries 

Statistics for Sarcopterygii

Cite this Entry

“Sarcopterygii.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Sarcopterygii. Accessed 18 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Love words? Need even more definitions?

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