Pyrotheria

plural noun

Py·​ro·​the·​ria
ˌpīrōˈthirēə
: an order of Paenungulata or in some classifications a suborder of Ungulata comprising large South American ungulates of Lower Tertiary age that have incisors like tusks and the cheek teeth all much alike and having two parallel transverse ridges

Word History

Etymology

New Latin, pyr- + -theria

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 Pyrotheria

Cite this Entry

“Pyrotheria.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Pyrotheria. Accessed 18 Jul. 2024.

Love words? Need even more definitions?

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