Source : WordNet®

pureblood
     adj : having a list of ancestors as proof of being a purebred
           animal [syn: {pedigree(a)}, {pedigreed}, {pureblooded},
            {thoroughbred}]

pureblood
     n : a pedigreed animal of unmixed lineage; used especially of
         horses [syn: {thoroughbred}, {purebred}]