DictionaryhippopotamusLarge semiaquatic mammal
noun

hippopotamus

hip-uh-PAH-tuh-mus/ˌhɪpəˈpɑːtəməs/

A large African mammal with a huge mouth that spends much of its time in water.

The hippopotamus stands at the river's edge with its massive body fully visible.

A single adult hippopotamus stands at a shallow river edge, its massive barrel-shaped body, thick folded skin, broad muzzle and short legs clearly visible.
Etymology

The name means 'river horse,' from an earlier Greek expression meaning 'the horse of the river.' It names the animal through its association with rivers rather than its thick skin.

In context

WatchMojo.com4:15
however the hippopotamus can sometimes be a violent animal that'll attack zebras other hippos and even people if provoked
Top 10 Cannibal Creatures

More examples

  • The hippopotamus opens its huge mouth in a yawn.
  • A hippopotamus leaves the water after sunset to graze.
  • Several hippopotamuses gather near the muddy riverbank.

Forms

hippopotamus · hippopotamuses · hippopotami

Similar words

hippo
Hippo is the common informal name for the same animal.