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quarter horse

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noun
  1. one of a breed of strong horses developed in the U.S. for short-distance races, usually a quarter of a mile.
  2. a horse of this breed used in herding livestock.

Origin of quarter horse

An Americanism dating back to 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for quarter horse

quarter horse

noun
  1. a small powerful breed of horse, originally bred for sprinting in quarter-mile races in Virginia in the late 18th century
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012