ejection vs voiding

ejection

noun
  • That which is ejected. 

  • The act of ejecting. 

voiding

noun
  • That which is voided; that which is ejected or evacuated; a remnant; a fragment. 

  • An act by which something is voided, such as urination. 

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