Definition of deinotherium in English:


(also deinothere)


  • An elephantlike fossil mammal found mainly in the Pliocene epoch, the lower jaw having tusks that curve downward and backward.

    • ‘It is a member of a group called the deinotheres which were cousins to the elephants.’
    • ‘These ancient species were lying side by side with more advanced forms called deinotheres and gomphotheres, which were not previously known to exist until 20 million years ago.’
    • ‘Imagine a landscape inhabited by several kinds of elephantoids, deinotheres, three species of rhino, two species of hippo, and two species of giraffe.’
    • ‘The name deinothere is based on the Greek for ‘terrible beast’, as 19th century naturalists believed that it was a sea monster.’
    • ‘By the Early Miocene, deinotheres had grown to the size of a small elephant, and had migrated to Eurasia.’


Modern Latin, from Greek deinos terrible + thērion wild beast.