Archaeocyatha

plural noun Ar·chaeo·cy·a·tha

Definition of Archaeocyatha

in some classifications

  1. :  a phylum of extinct animals of uncertain systematic relations represented by fossils of the genus Archaeocyathus

There's more!

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!
Already a subscriber? Log in.

Origin and Etymology of archaeocyatha

New Latin, from Archaeocyathus


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

an incorrigible rascal

Get Word of the Day daily email!

Love words? Need even more definitions?

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