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1. Having a list of ancestors as proof of being a purebred animal
   "These days it is possible to get thoroughbred cats through the newspaper";
   - pedigree, pedigreed, pureblood, pureblooded

1. A well-bred person
    
2. A racehorse belonging to a breed that originated from a cross between Arabian stallions and English mares
    
3. A pedigreed animal of unmixed lineage; used especially of horses
   - purebred, pureblood

Derived forms: thoroughbreds

See also: purebred

Type of: adult, animal, animate being, bangtail [US, informal], beast, brute, creature, fauna, grownup, neddy [Austral, informal], pony [informal], race horse, racehorse

Encyclopedia: Thoroughbred