Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Aceratherium

noun
Acera·​the·​ri·​um | \¦āˌserəˈthirēəm\

Definition of Aceratherium 

: a genus of extinct hornless rhinoceroses of the Oligocene, Miocene, and Pliocene

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!

First Known Use of Aceratherium

circa 1845, in the meaning defined above

History and Etymology for Aceratherium

New Latin, irregular from Greek akeratos + New Latin -therium

Keep scrolling for more

Learn More about Aceratherium

Share Aceratherium

Dictionary Entries near Aceratherium

Acerata

acerate

acerathere

Aceratherium

acerb

acerbate

acerbic

Statistics for Aceratherium

Look-up Popularity

Time Traveler for Aceratherium

The first known use of Aceratherium was circa 1845

See more words from the same year

Comments on Aceratherium

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

Show Comments  Hide Comments 

WORD OF THE DAY

chapel

a private place of worship

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Vocab Quiz

  • the-education-of-achilles-eugne-delacroix
  • Which is a synonym of discomfit?
True or False

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

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

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