what is a half blood in harry potter

In the Harry Potter universe, a half-blood is a term commonly given to wizards and witches who have known Muggle or Muggle-born parents or grandparents. They have both magical and Muggle ancestors in their family trees and are the most common blood status, far outnumbering pure-bloods and Muggle-borns. Harry Potter himself is a half-blood, as his father was a pure-blood wizard and his mother was a Muggle-born witch. Voldemort is also a half-blood, as his father was a Muggle. Pure-blood supremacists view half-bloods as inferior to them, although superior to Muggles and Muggle-borns.