1 definition by iloveharrypotter!!!!!
A horcrux is an object in which one stores part of one's soul. When a witch or wizard murders someone they can use very dark magic and split their soul in two or maybe even more numbers and store part of their soul in an object which will allow them to be virtually immortal because while their physical body may be killed, their soul remains. In order to kill a person with a horcrux you must both kill the person and destroy their horcrux (or horcruxes) The horcrux can be a dark object, animal or possibly even person that has some meaning to the person who it belongs to (however they object does not necessarily need to have meaning to the person.)
Harry Potter must find and destroy all of Voldemort's horcruxes. After Harry has done this he can kill Voldermort, the final and ultimate horcrux.
by iloveharrypotter!!!!! July 25, 2005