Source : Webster's Revised Unabridged Dictionary (1913)

Dinothere \Di"no*there\, Dinotherium \Di`no*the"ri*um\, n. [NL.
   dinotherium, fr. Gr. ? terrible + ? beast.] (Paleon.)
   A large extinct proboscidean mammal from the miocene beds of
   Europe and Asia. It is remarkable fora pair of tusks directed
   downward from the decurved apex of the lower jaw.