Definition of neonaticide in English:

neonaticide

noun

  • The killing of a recently born infant, especially one less than twenty-four hours old.

Origin

1960s. From neonate + -icide, after infanticide. Compare earlier naticide.

Pronunciation

neonaticide

/ˌnɪə(ʊ)ˈneɪtɪsʌɪd/