rhinoceros

American  

[rahy-nos-er-uhs] / raɪˈnɒs ər əs /

noun

• rhinoceroses,
  plural
• rhinoceros
  plural

1. any of several large, thick-skinned, perissodactyl mammals of the family Rhinocerotidae, of Africa and India, having one or two upright horns on the snout: all rhinoceroses are endangered.

2. Douay Bible. unicorn.

---

rhinoceros British  

/ raɪˈnɒsərəs, -ˈnɒsrəs /

noun

1. any of several perissodactyl mammals constituting the family Rhinocerotidae of SE Asia and Africa and having either one horn on the nose, like the Indian rhinoceros ( Rhinoceros unicornis ), or two horns, like the African white rhinoceros ( Diceros simus ) They have a very thick skin, massive body, and three digits on each foot

---

Usage

Plural word for rhinoceros The plural form of rhinoceros is rhinoceroses. The plurals of several other singular words that end in -s are also formed in this way, such as pass/passes, lotus/lotuses, and dress/dresses. In some words derived from Latin that end in -us, the irregular plural ending -i is used, as in fungus/fungi and cactus/cacti. Sometimes, for humorous effect or as an overcorrection, people apply the same kind of ending to rhinoceros (because it sounds like it ends in -us), as in rhinoceri. However, this is not a valid plural form of rhinoceros.

Other Word Forms

Derived Forms

• rhinocerotic
  adjective

Inflected Forms

Nouns

• rhinoceros
  plural
• rhinoceroses
  plural

---

Etymology

Origin of rhinoceros

1300–50; Middle English rinoceros < Late Latin rhīnoceros < Greek rhīnókerōs, equivalent to rhīno- rhino- + -kerōs -horned, adj. derivative of kéras horn (of an animal)

---

Explanation

With its massive size, thick skin, and horned snout, the rhinoceros may look like a fearsome creature from a prehistoric world, but this powerful pachyderm is actually a herbivore found in Southeast Asia and Africa. Despite their tough and intimidating appearance, the diet of a rhinoceros consists primarily of grasses, leaves, and shoots rather than smaller animals. Sadly, the rhinoceros is an endangered animal due to illegal hunting and habitat loss. The rhinoceros plays a crucial role in its environment, contributing to the ecosystem by helping to shape the landscape with its grazing and promoting biodiversity with its presence.

Example Sentences

See Examples For:

rhinoceros rhinoceroses

In U.S. television, there’s a tendency to open every piece of sports programming with a clash of cymbals and a rhinoceros jumping through a flaming hoop.

From The Wall Street Journal ● Jun. 23, 2026

“It’s also given me the skin of a rhinoceros, which comes in handy when you’re the CEO of Apple,” he wrote in the essay.

From Los Angeles Times ● Apr. 22, 2026

"I've got three favourites, the rhinoceros, tigers and red pandas," he said.

From BBC ● Apr. 11, 2026

Airport authorities and police seized six pieces of rhinoceros horn and around 12 kilograms of unidentified meat used to conceal them inside a polystyrene icebox.

From Barron's ● Feb. 10, 2026

I, meanwhile, croaked out a laugh that sounded like a rhinoceros in heat.

From "From Twinkle, with Love" by Sandhya Menon

Rodents, rabbits, koalas, horses, rhinoceroses and elephants are all hind-gut fermenters – animals that have simple, single-chambered stomachs and rely on microbes in their intestines to extract nutrients from high-fiber food.

From Salon ● Dec. 30, 2024

For the larger Southeast Asian region, the focus expands to include species such as tigers, orangutans, elephants, rhinoceroses and other endangered large mammals.

From Science Daily ● Jan. 29, 2024

Yes, Neandertal women were spearing woolly rhinoceroses, and Neandertal men were making clothing.

From Scientific American ● Oct. 17, 2023

Titanotheres belong in the order Perissodactyla, along with rhinoceroses, tapirs and horses.

From Seattle Times ● Sep. 15, 2023

Nhamo had found no evidence of lions or hyenas, buffalo or rhinoceroses.

From "A Girl Named Disaster" by Nancy Farmer

Random Word

Spin the wheel and learn a new word!

---