infanticide

noun5

1. •
   The murder of an infant.

   • PROLICIDE […] Admits of two divisions, foeticide or criminal abortion and infanticide or the destruction of the new born infant. — 1827
2. •
   The murder of a child by a parent; filicide.
3. •
   (Canada) The criminal offence of killing of a newborn, committed by its mother while psychologically disturbed by the effects of childbirth or lactation, not regarded as murder.
4. •
   The killing of a young, immature animal by a mature adult of the same species.
5. •
   The murderer of a child: a person who has committed infanticide.