Arsinoitherium

noun

Ar·​si·​noi·​the·​ri·​um

ˌärsəˌnȯiˈthirēəm

: a genus of extinct mammals (order Embrithopoda) of the Oligocene of Egypt having limbs resembling those of the elephant and a pair of large horns

Word History

Etymology

New Latin, irregular from Arsinoë II †271 b.c. queen of Egypt + New Latin -therium

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