plural noun
Cte·​noi·​dei | \ tə̇ˈnȯidēˌī \

Definition of Ctenoidei

: an artificial group formerly regarded as an order that includes fishes with ctenoid scales and is more or less exactly coextensive with Acanthopterygii

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 Ctenoidei

New Latin, from Greek ktenoeidēs comblike

Keep scrolling for more

Learn More about Ctenoidei

Statistics for Ctenoidei

Cite this Entry

“Ctenoidei.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Ctenoidei. Accessed 10 Aug. 2020.

Comments on Ctenoidei

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


Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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