Thoroughbred

adj. pure-bred, pedigreed; cultured

n. pure bred, pedigree; cultured person

The Thoroughbred is a horse breed best known as a race horse. While carefully bred racehorses had existed throughout Europe for centuries prior to this time, the breed as it is known today developed during the 17th century in England when English mares began to be bred to imported Arabian stallions. This addition of verifiable Arabian blood coincided with the creation of the General Stud Book of England and the practice of official registering of horses. Today all modern Thoroughbreds trace to these imported stallions.
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(n.)
A thoroughbred animal, especially a horse.
  

(a.)
Bred from the best blood through a long line; pure-blooded; -- said of stock, as horses. Hence, having the characteristics of such breeding; mettlesome; courageous; of elegant form, or the like.
  

Noun
1. a well-bred person
(antonym) mixed-blood
(hypernym) adult, grownup
2. a racehorse belonging to a breed that originated from a cross between Arabian stallions and English mares
(hypernym) racehorse, race horse, bangtail
(hyponym) Sir Barton
3. a pedigreed animal of unmixed lineage; used especially of horses
(synonym) purebred, pureblood
(hypernym) animal, animate being, beast, brute, creature, fauna
Adjective
1. having a list of ancestors as proof of being a purebred animal
(synonym) pedigree(a), pedigreed, pureblood, pureblooded
(similar) purebred