grizzly bear

noun

: a very large brown bear (Ursus arctos) of northwestern North America

Note: The grizzly bear is the same species as the brown bear, but grizzly bear is typically used for the North American brown bear and not the European or Asian brown bear. In the U.S., grizzly bear is most often used for a brown bear of inland habitats (as in Montana and western Canada) that is typically smaller than coastal brown bears and usually has lighter-colored tips on the fur. The grizzly bear is often considered a subspecies (Ursus arctos horribilis) of the brown bear and, especially formerly, a separate species (Ursus horribilis).

The brown bears of Kodiak Island, the grizzly bears of the Rocky Mountains and interior Alaska, the European brown bear, all are now considered to be the same species, Ursus arctos, despite tremendous variation in color, size, and habits.Natural History

called also grizzly

Examples of grizzly bear in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
For example, grizzly bears in Yellowstone National Park don’t often weigh more than 900 pounds, while large boars in Katmai National Park and Preserve often weigh over 1,000 pounds, according to the National Park Service. Jen Reeder, Forbes.com, 18 Sep. 2025 The last encounter took place in May 2021 when a grizzly bear injured a solo hiker on the Beaver Ponds Trail in Mammoth Hot Springs. Natalie Neysa Alund, USA Today, 17 Sep. 2025 In May 2021, a solo hiker was injured by a grizzly bear on the Beaver Ponds Trail in Mammoth Hot Springs, according to the National Park Service. Sam Gillette, PEOPLE, 17 Sep. 2025 While black bears are far less aggressive than brown bears, according to the North American Bear Center, 70 percent of human fatalities caused by grizzly bears are the result of a sow protecting her cubs. Katie Jackson, Outside, 11 Sep. 2025 See All Example Sentences for grizzly bear

Word History

First Known Use

1791, in the meaning defined above

Time Traveler
The first known use of grizzly bear was in 1791

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Cite this Entry

“Grizzly bear.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/grizzly%20bear. Accessed 22 Sep. 2025.

Kids Definition

grizzly bear

noun
: a large powerful brown bear found from the lower 48 to Alaska

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