noun (plural hippopotamuses or hippopotami /-mʌɪ/)
A large thick-skinned semiaquatic African mammal, with massive jaws and large tusks.
- Family Hippopotamidae: the very large Hippopotamus amphibius, frequenting rivers and lakes, and the smaller pygmy hippopotamus (Choeropsis liberiensis), frequenting forests near fresh water in West Africa
More example sentences
- Arriving in step with East African flora were the creatures of the East African savannas: gazelle, giant deer, hippopotamus, rhinoceros, wart hog.
- The Cape Colony extended systematic protection to elephants, giraffes, hippopotami, buffalo, zebras, quaggas and antelopes in 1886.
- Animals with relatively short distal bones, such as elephants and hippopotamuses, have more columnar legs and do little running.
Middle English: via Latin from Greek hippopotamos, earlier hippos ho potamios 'river horse' (from hippos 'horse', potamos 'river').
Definition of hippopotamus in:
- The US English dictionary