auricular vs index finger

auricular

noun
  • The little finger, the outermost and smallest finger of the hand. 

  • The ear. 

adj
  • Pertaining to a style of ornamental decoration, originating in Northern Europe in the first half of the 17th century, that uses softly flowing abstract shapes in relief some of which bear a resemblance to the human ear; commonly used in silverware, picture frames, and architecture. 

  • Of or pertaining to the sense of hearing. 

  • Told to the ear; told privately. 

  • Recognized by the ear; understood by the sense of hearing. 

  • Of or pertaining to the ear. 

  • Pertaining to the auricles of the heart. 

index finger

noun
  • the forefinger 

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