Definition of parricide noun from the Oxford Advanced Learner's Dictionary

 

parricide

 noun
noun
BrE BrE//ˈpærɪsaɪd//
 
; NAmE NAmE//ˈpærɪsaɪd//
 
[uncountable, countable](formal)
 
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the crime of killing your father, mother or a close relative; a person who is guilty of this crime compare fratricide, matricide, patricide Word Origin late 16th cent.: from French, from Latin parricidium ‘murder of a parent’, with first element of unknown origin, but for long associated with Latin pater ‘father’ and parens ‘parent’.
See the Oxford Advanced American Dictionary entry: parricide