purebred

[ adjective pyoo r-bred; noun pyoo r-bred ]

/ adjective ˈpyʊərˈbrɛd; noun ˈpyʊərˌbrɛd /

of or relating to an animal, all of whose ancestors derive over many generations from a recognized breed.

a purebred animal, especially one of registered pedigree.

Origin of purebred

First recorded in 1865–70; pure + bred

In reality, there are no pure-bred libertarian leaders in Congress.

You Must Love Me! |Gregory Ferenstein |May 31, 2013 |DAILY BEAST
To all outward appearance, he was a pure-bred collie of the very highest type.

Buff: A Collie and other dog-stories |Albert Payson Terhune
Underbred, un′dėr-bred, adj. of inferior breeding or manners, vulgar: not pure-bred.

Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) |Various
The pure-bred Peruvian horse is more elegantly formed than his Andalusian progenitor.

Travels in Peru, on the Coast, in the Sierra, Across the Cordilleras and the Andes, into the Primeval Forests |J. J. von Tschudi

These predilections cling to cultivated pears wherever grown, and pure-bred varieties do not thrive under other conditions.

The Pears of New York |U. P. Hedrick
The pure-bred Eskimo generally marries as soon as he can provide for a wife.

Eskimo Life |Fridtjof Nansen

purebred

denoting a pure strain obtained through many generations of controlled breeding for desirable traits

a purebred animal Compare grade (def. 9), crossbred (def. 2)