thoroughbred
thor-ough-bred
adjective
Of pure breed or excellent, unmixed lineage or quality.
"She came from thoroughbred stock."
noun
A horse of pure breed, especially one bred for racing.
"The thoroughbred galloped to victory at Ascot."
Thesaurus
Synonyms: purebred, pureblood, pedigree, pureblooded, pedigreed