Definition of arsinoitherium in English:

arsinoitherium

Pronunciation /ˌɑːsɪnəʊɪˈθɪərɪəm/

noun

(also arsinöitherium)
  • An extinct rhinoceros-like herbivorous mammal of the genus Arsinoitherium, distantly related to elephants, with a large horn on each side of the snout, and known from fossil remains of the Eocene and Oligocene epochs.

Origin

Early 20th century. From scientific Latin Arsinoitherium, genus name from Arsinoe (classical Latin Arsinoē, Hellenistic Greek Ἀρσινόη), the name of a city of the Egyptian region of Fayum in which the fossil remains of the mammal were found + scientific Latin -i- + -therium.