Webster's Revised Unabridged Dictionary · 1913

Dinothere

Dinothere , noun

[New Latin dinotherium, from Greek deino`s terrible + qhri`on beast.]

(Paleontology) A large extinct proboscidean mammal from the miocene beds of Europe and Asia. It is remarkable for a pair of tusks directed downward from the decurved apex of the lower jaw.

Also: Dinotherium