'Filicide' definitions:

Definition of 'filicide'

(from WordNet)
noun
A parent who murders his own son or daughter
noun
The murder of your own son or daughter

Definition of 'Filicide'

From: GCIDE
  • Filicide \Fil"i*cide\, n. [L. filius son, filia daughter + caedere to kill.] The act of murdering a son or a daughter; also, parent who commits such a murder. [1913 Webster]