destructor vs predator

destructor

noun
  • One who destructs. 

  • A furnace or oven for the burning or carbonizing of refuse. 

  • A function that runs when an object is no longer required, used to release any resources that it was using. 

predator

noun
  • Someone who attacks and plunders for gain. 

  • A sexual predator. 

  • Any animal or other organism that hunts and kills other non-plant organisms (their prey), primarily for food. 

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