'Hippo' definitions:

Definition of 'Hippo'

From: WordNet
noun
An ancient Numidian town in northwestern Africa adjoining present-day Annaba in northeastern Algeria [syn: Hippo, Hippo Regius]
noun
Massive thick-skinned herbivorous animal living in or around rivers of tropical Africa [syn: hippopotamus, hippo, river horse, Hippopotamus amphibius]

Definition of 'hippo'

From: GCIDE
  • hippo \hip"po\ n. Same as hippopotamus.
  • Syn: hippopotamus, river horse, Hippopotamus amphibius. [WordNet 1.5]