Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Seymouriamorpha

plural noun
Sey·​mour·​i·​a·​mor·​pha

Definition of Seymouriamorpha

: an order of Permian Labyrinthodontia comprising generalized forms exhibiting a mixture of amphibian and reptilian characters and possibly on the ancestral line of the true reptiles

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 Seymouriamorpha

New Latin, from Seymouria, genus of Permian Labyrinthodontia (probably from the name Seymour + New Latin -ia) + -morpha

Keep scrolling for more

Learn More about Seymouriamorpha

Dictionary Entries near Seymouriamorpha

Seymeria

Seymour

seymouriamorph

Seymouriamorpha

Seyss-Inquart

seyyid

sf

Statistics for Seymouriamorpha

Look-up Popularity

Comments on Seymouriamorpha

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

Show Comments  Hide Comments 

WORD OF THE DAY

demeanor

Listen to the pronounciation of demeanor

behavior toward others

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

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!

Words at Play
Ask the Editors
Word Games