A "pure blood" is called a purebred.
In the context of animals, "pure blood" or "purebred" refers to an animal whose ancestors are all of the same breed, documented in a pedigree. This is typically done through breed registries and organizations. The term signifies that the animal's lineage has been carefully maintained and conforms to specific breed standards.
In a fictional context, such as in the Harry Potter series, "pure-blood" refers to a witch or wizard who has only magical ancestors. This usage is not literal or biological but a social construct within the fictional world. It should be noted that this use of the term can be associated with prejudice and discrimination.
