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

Definition of Aceratherium

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

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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

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Time Traveler for Aceratherium

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The first known use of Aceratherium was circa 1845

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Cite this Entry

“Aceratherium.” The Dictionary, Merriam-Webster Inc., Accessed 13 December 2019.

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easily led, controlled, or managed

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