1) Of unmixed ancestry 2) Pedigree 3) Pedigreed 4) Pureblooded 5) Purebred 6) Thoroughbred 7) Used especially of horses 8) Virus-free serum 1) Pedigree 2) Pedigreed 3) Pure blooded 4) Purebred 5) Thoroughbred 
an individual, esp. an animal, whose ancestry consists of a single strain or type unmixed with any other.