disrupter vs reformer

disrupter

noun
  • Someone or something that disrupts. 

  • An energy weapon in the form of a pistol. 

reformer

noun
  • One who reforms, or who works for reform. 

  • One who was involved in the Reformation. 

  • A device used to convert petroleum refinery naphthas, typically having low octane ratings, into high-octane liquid products called reformates. 

  • A device which converts hydrocarbons into a hydrogen-rich mixture of gases. 

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