Background
matricide
The Oxford Pocket Dictionary of Current English
mat·ri·cide / ˈmatrəˌsīd; ˈmā- / • n. the killing of one's mother: a man suspected of ...
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patricide
The Oxford Pocket Dictionary of Current English
pat·ri·cide / ˈpatrəˌsīd / • n. the killing of one's father. ...
» Read more about patricide at Encyclopedia.com