hippopotamus
Americannoun
noun
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a very large massive gregarious artiodactyl mammal, Hippopotamus amphibius, living in or around the rivers of tropical Africa: family Hippopotamidae. It has short legs and a thick skin sparsely covered with hair
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a related but smaller animal, Choeropsis liberiensis
Usage
Plural word for hippopotamus The plural form of hippopotamus can be either hippopotamuses or hippopotami. Hippopotamuses is more widely used. The plurals of several other singular words ending in -us are also formed this way, such as virus/viruses, sinus/sinuses, and walrus/walruses. Irregular plurals that are formed like hippopotami, such as cactus/cacti and fungus/fungi, derive directly from their original pluralization in Latin. However, the standard English plural -es ending is often also acceptable for these terms, as in cactuses.
Other Word Forms
Derived Forms
Etymology
Origin of hippopotamus
1555–65; < Latin < Greek hippopótamos, earlier híppos potámios literally, riverine horse (term used by Herodotus in his account of the Egyptian hippopotamus); compare Middle English ypotame, ypotamos, ypotanus < Old French ypotame < Medieval Latin ypotamus
Explanation
A hippopotamus is a huge African mammal that spends time in the water and on land. These herbivores are so enormous that one hippopotamus can eat two pounds of grass in a single feeding. Although they're plant-eaters, hippopotamuses are powerfully strong and fiercely protective. Experts consider them to be unpredictable as well, and if you happen to be in sub-saharan Africa, it's smart to keep your distance! Hippopotamus is from the Greek ho hippos potamios, "the horse of the river," and its roots, hippos, "horse," and potamos, "rushing water."
Vocabulary lists containing hippopotamus
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Cranial and dental morphologies also confirmed the identity of this skull as the modern species Hippopotamus amphibius.
From Science Daily • Nov. 22, 2023
For whimsy, I recently did “I Want a Hippopotamus for Christmas” at our Pandora Music Analysis party, and it was a hit.
From Los Angeles Times • Dec. 22, 2022
The study, published in the Journal of Quaternary Science and co-authored with researchers from Royal Holloway, University of London, said the tooth was identified as belonging to an extinct species of hippo called Hippopotamus antiquus.
From BBC • Oct. 5, 2021
“I Want A Hippopotamus For Christmas” by Gayla Peevey: Another kid-sung novelty number, this one from 1953 by 10-year-old Gayla Peevey who — did you guess it? — wants a hippopotamus for Christmas.
From Seattle Times • Dec. 24, 2019
Explorations and Adventures in Equatorial Africa: with Accounts of the Manners and Customs of the People, and of the Chase of the Gorilla, the Crocodile, Leopard, Elephant, Hippopotamus, and other Animals.
From Caricature and Other Comic Art in all Times and many Lands. by Parton, James
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
