infanticide

noun

1. (countable, uncountable)The murder of an infant.

   “PROLICIDE […] Admits of two divisions, fœticide or criminal abortion and infanticide or the destruction of the new born infant.”

   “A recent government survey shows that 65 per cent of the families in Japan today are nuclear families, and a report on infanticide published this year by the Criminal Sience Club of Chuo University here indicates that eight out of ten infanticides today occur in nuclear families.”

2. (countable, uncountable)The murder of a child by a parent; filicide.
3. (Canada, countable, uncountable)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. (countable, uncountable)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.