Plagiostomi

plural noun
Pla·​gi·​os·​to·​mi | \ ˌplājēˈästəˌmī \

Definition of Plagiostomi

in some especially former classifications
: a group of fishes more or less exactly equivalent to Chondrichthyes or more restrictedly an order including the existing sharks and rays as distinguished from the chimaeras and the extinct primitive groups Pleuropterygii and Ichthyotomi — compare selachii

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 Plagiostomi

New Latin, from plagi- + -stomi

Keep scrolling for more

Learn More about Plagiostomi

Statistics for Plagiostomi

Cite this Entry

“Plagiostomi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Plagiostomi. Accessed 24 Sep. 2020.

Comments on Plagiostomi

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

WORD OF THE DAY

Test Your Vocabulary

Homophone Quiz

  • three bears two of them look like theyre whispering to a third bear who looks chuffed to be the center of attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

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!