modification vs re-examination

modification

noun
  • A change to an organism as a result of its environment that is not transmissable to offspring. 

  • the change undergone by a word when used in a construction (for instance am => 'm in I'm) 

  • The act of making a change to something while keeping its essential character intact; an alteration or adjustment. 

  • a change to a word when it is borrowed by another language 

  • The result of modifying something; a new or changed form. 

re-examination

noun
  • In United States patent law, a procedure under which an issued patent is returned to the examiner to determine if it remains valid in light of newly discovered prior art. 

  • A second or subsequent examination. 

  • Subsequent questioning of a witness after cross-examination. 

How often have the words modification and re-examination occurred in a corpus of books? (source: Google Ngram Viewer )