adhesion vs traction

adhesion

noun
  • The frictional grip on a surface, of wheels, shoes etc. 

  • An abnormal union of surface by the formation of new tissue resulting from an inflammatory process. 

  • Persistent attachment or loyalty. 

  • The ability of a substance to stick to an unlike substance. 

  • An agreement to adhere. 

  • The binding of a cell to a surface or substrate. 

traction

noun
  • The adhesive friction of a wheel etc on a surface. 

  • The condition of being so pulled. 

  • The extent of adoption of a new product or service, typically measured in number of customers or level of revenue achieved. 

  • Popular support. 

  • A mechanically applied sustained pull, especially to a limb. 

  • Collectively, the locomotives of a railroad, especially electric locomotives. 

  • The act of pulling something along a surface using motive power. 

  • The pulling power of an engine or animal. 

  • Grip. 

  • Scholarly interest and research. 

verb
  • To apply a sustained pull to (a limb, etc.). 

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