A more thorough explanation:

Definition: Parricide is the act of killing a close relative, especially a parent. It can also refer to a person who commits such a crime. This term is similar to patricide, which specifically refers to the killing of one's father.

Example: One example of parricide is the case of Lizzie Borden, who was accused of killing her father and stepmother with an axe in 1892. Another example is the story of Oedipus, who unknowingly killed his father and married his mother.

These examples illustrate the definition of parricide as the act of killing a close relative, in this case, a parent. Both Lizzie Borden and Oedipus committed this crime, although their motives and circumstances were very different.