Ichthyopsida

plural noun
Ich·thy·op·si·da

Definition of Ichthyopsida 

in some especially former classifications

: a group of vertebrates comprising the agnathous vertebrates, fishes, and amphibians — compare mammalia , sauropsida

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!

Other Words from Ichthyopsida

ichthyopsidan \¦⸗⸗¦⸗sədən, -dᵊn \ adjective or noun

History and Etymology for Ichthyopsida

New Latin, from ichthy- + Greek opsis appearance + New Latin -ida

Keep scrolling for more

Learn More about Ichthyopsida

Share Ichthyopsida

Statistics for Ichthyopsida

Look-up Popularity

Comments on Ichthyopsida

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

WORD OF THE DAY

required by fashion, etiquette, or custom

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

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!