matricide
noun /ˈmætrɪsaɪd/
/ˈmætrɪsaɪd/
[uncountable, countable] (formal)- the crime of killing your mother; a person who is guilty of this crime compare fratricide, parricide, patricideTopics Crime and punishmentc2Word Originlate 16th cent.: from Latin matricidium, from mater, matr- ‘mother’ + -cidium, from caedere ‘kill’.