Definition from Wiktionary, the free dictionary
infanticide (plural infanticides)
- The murder of an infant.
- The murder of a child by a parent; filicide.
- The murderer of a child: a person who has committed infanticide.
- (zoology) The killing of a young, immature animal by a mature adult of the same species.
Related terms 
the murder of an infant
the murder of one's child
a person who has killed a child
See also 
- Plural form of infanticida