SINCE 1828
dictionary
thesaurus

Hyracotherium

noun
Save Word
Hy·​ra·​co·​the·​ri·​um

Definition of Hyracotherium

: a genus of lower Eocene perissodactylous mammals about the size of a fox having four-toed forelimbs and three-toed hind limbs and regarded as among the earliest ancestors of the modern horse

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 Hyracotherium

New Latin Hyrac-, Hyrax + -o- + -therium

Learn More About Hyracotherium

Dictionary Entries Near Hyracotherium

hyracothere

Hyracotherium

hyrax

See More Nearby Entries 

Statistics for Hyracotherium

Cite this Entry

“Hyracotherium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Hyracotherium. Accessed 7 Jul. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

inscrutable

Listen to the pronunciation of inscrutable

See Definitions and Examples »

Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
True or False

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

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

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