plural noun
Phyl·​lo·​spon·​dy·​li | \ ˌfilōˈspändəˌlī \

Definition of Phyllospondyli

in some especially former classifications
: an order of extinct amphibians with phyllospondylous vertebrae that are now usually regarded as larval labyrinthodonts — compare branchiosaurus

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 Phyllospondyli

New Latin, from phyll- + -spondyli

Keep scrolling for more

Learn More about Phyllospondyli

Statistics for Phyllospondyli

Cite this Entry

“Phyllospondyli.” Dictionary, Merriam-Webster, Accessed 11 Jul. 2020.

Comments on Phyllospondyli

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


See Definitions and Examples »

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”?
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!