abortifacient vs abortificant

abortifacient

noun
  • A drug or an agent that induces an abortion. 

adj
  • Producing miscarriage. 

abortificant

noun
  • Anything, especially a medicine or preparation, used to induce an abortion. 

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