What does purebred mean?
Purebred describes an animal, plant, or person associated with a single recognized breed, strain, or ancestral line rather than a mixture. The adjective is most often used with animals such as dogs, horses, and cattle, and the noun refers to an individual animal belonging to such a breed. In everyday language, the word often implies that the animal's ancestry is documented through a breed registry, although the term can also describe an animal whose parents came from the same breed without such registration. “Purebred” is practical when discussing breeding, ownership, pedigrees, and breed standards, but it should not be confused with “pedigree,” which is broader and can refer to family history or lineage generally. It is also distinct from “thoroughbred,” a term particularly associated with registered racing horses. The word's emphasis on selective breeding makes it useful for understanding how inherited traits and recognized breeds are described.
Belonging to a breed or strain produced by breeding only parents or ancestors of the same recognized kind.
"She registered her purebred collie with the national kennel club."
Most often used of animals, particularly dogs, horses, and cattle; it can also describe plants.
An animal belonging to a recognized breed or strain, especially one with documented ancestry.
"The two purebreds competed in separate classes at the county show."
The count noun plural is “purebreds.” The word may also be used informally of a person with distinguished ancestry.
Use the plural when referring to multiple animals or people described as purebred.
"The shelter took in several purebreds whose owners could no longer care for them."
A purebred is not merely a well-loved pet: its identity is backed by generations of selective breeding and, often, a formal pedigree record.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does purebred come from?
The word combines “pure,” from Latin purus meaning clean or unmixed, with “bred,” the past participle of “breed.” “Breed” itself comes from Old English brēdan, meaning to produce or rear offspring, and ultimately relates to Old Norse and Proto-Germanic forms associated with broadening or producing young. The compound therefore developed from the idea of animals or people bred from one particular line rather than from mixed stock. Modern usage is especially associated with registered breeds and documented ancestry.
Related word forms
How purebred is actually used
The term is used for animals and plants but is especially common in connection with dogs, horses, and cattle. It can also refer figuratively to a person of distinguished ancestry, though that use may sound formal or old-fashioned. In some contexts, “purebred” can suggest that value has been placed on lineage rather than individual qualities.
Easily confused with purebred
Purebred specifically means that an animal comes from a recognized line or breed, whereas pedigree can also refer broadly to ancestry, family history, or documented lineage.
Thoroughbred commonly denotes a specific breed of horse, especially one registered for racing, while purebred is a broader term for animals or plants belonging to a single breed.