Pronunciation: (hip"u-pot'u-mus), [key]
—pl. -mus•es, -miPronunciation: (-mī"). [key]
a large herbivorous mammal, Hippopotamus amphibius, having a thick hairless body, short legs, and a large head and muzzle, found in and near the rivers, lakes, etc., of Africa, and able to remain under water for a considerable time.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.