feticide vs induced abortion

feticide

noun
  • The killing of a fetus or embryo; an induced abortion. 

  • One who kills a fetus. 

induced abortion

noun
  • A surgical or medicinal procedure that terminates a pregnancy by removing the fetus; a therapeutic abortion. It is a non-contraceptive form of birth control. 

How often have the words feticide and induced abortion occurred in a corpus of books? (source: Google Ngram Viewer )