parricide Meaning, Definition & Usage

  1. noun someone who kills his or her parent
  2. noun the murder of your own father or mother

WordNet

Par"ri*cide noun
Etymology
F., fr. L. parricida; pater father + caedere to kill. See Father, Homicide, and cf. Patricide.
Definitions
  1. Properly, one who murders one's own father; in a wider sense, one who murders one's father or mother or any ancestor.
  2. L. parricidium. The act or crime of murdering one's own father or any ancestor.

Webster 1913