centripetal vs neural

centripetal

adj
  • Directed towards the central nervous system; afferent. 

  • Directed or moving towards a centre. 

  • Of, relating to, or operated by centripetal force. 

neural

adj
  • Of, or relating to the nerves, neurons or the nervous system. 

  • Modelled on the arrangement of neurons in the brain. 

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