Hippopotamus

hip-o-pot′a-mus, n. the river-horse—an African quadruped, of aquatic habits, having a very thick skin, short legs, and a large head and muzzle.— adj. Hippo pot am′ic (also -pot′-), like a hippopotamus, clumsy. [L.,—Gr. hippo pot a mos — hippos , a horse, potamos , a river.]