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Greyhound
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Two greyhound dogs, one tan and one white, stand in tall green grass with their tongues out. A miniature Greyhound Two greyhounds racing at full speed across grass, one wearing a blue vest and the other a red vest, during a coursing competition. Greyhound Doggie bingo Greyhound. dog racing greyhound Illustration of various animals running or moving, each labeled with its top speed, including cheetah, pronghorn antelope, ostrich, giraffe, elephant, deer, gazelle, greyhound, jackrabbit, fox, emu, roadrunner, warthog, rhinoceros, Mongolian wild ass, two-toed sloth, and desert tortoise.
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Two greyhound dogs, one tan and one white, stand in tall green grass with their tongues out.
Greyhounds A breed slender, streamlined, fast, and strong.

Greyhound

breed of dog
Also known as: Grayhound, Greyhound dog
Written by
Caroline Coile
Caroline Coile is the author of the Encyclopedia of Dog Breeds and more than 30 other books.
Caroline Coile
Fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
Britannica Editors
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•History

Greyhound, the fastest dog breed and one of the most ancient, long symbolic of aristocracy. Its likeness appears on an Egyptian tomb dating from about 3000 bce. Streamlined, slender, and strong, the Greyhound can attain a speed of about 45 miles (72 km) per hour. It has a narrow head, a long neck, a deep chest, long muscular hindquarters, and a long slim tail. Its coat is short and smooth and of various colors. Breed...

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