tapping vs transfixion

tapping

noun
  • A guitar technique in which the strings are tapped against the fingerboard 

  • An act of making a light hit or strike against something. 

  • A connection made to some point between the end terminals of a transformer coil or other component. 

  • The process by which a resource is tapped or exploited. 

transfixion

noun
  • In amputation, passing the knife from side to side through tissue close to the bone and dividing muscles outward. 

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