The Correct spelling is: hippopotamus
Common misspellings of the word hippopotamus are:
How do you spell hippopotamus?. It is not hipopotamus
n., pl. -musÂ·es or -mi (-mÄ«').
- A large, chiefly aquatic African herbivorous mammal (Hippopotamus amphibius) having thick, dark, almost hairless skin, short legs with four toes, and a broad, wide-mouthed muzzle. Also called river horse.
- The pygmy hippopotamus.
[Latin, from Greek hippopotamos : hippos, horse + potamos, river.]