plural noun

in some classifications
: a primary division of the plant kingdom coextensive with the subkingdom Embryophyta and containing all the plants that produce archegonia (as the mosses, ferns, horsetails, and club mosses)

Word History


New Latin, from archegonium + -atae (from feminine plural of Latin -atus -ate)

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!

Dictionary Entries Near Archegoniatae

Cite this Entry

“Archegoniatae.” Dictionary, Merriam-Webster, Accessed 21 Feb. 2024.

Love words? Need even more definitions?

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