1. Massive thick-skinned herbivorous animal living in or around rivers of tropical Africa
   "The Hippopotamus amphibius spent most of the day submerged in the river to stay cool";
   - hippopotamus, hippo, river horse

Type of: artiodactyl, artiodactyl mammal, even-toed ungulate

Part of: genus Hippopotamus

Encyclopedia: Hippopotamus amphibius