afferent vs tactile

afferent

noun
  • An afferent structure or connection 

adj
  • Carrying towards. 

tactile

adj
  • Used for feeling. 

  • Of or relating to the sense of touch. 

  • Tangible; perceptible to the sense of touch. 

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