centering vs consolidation

centering

noun
  • The process of moving something to a centre, normally before some other process. 

  • A type of formwork which serves as a temporary structure during the construction of arches and bridges. 

consolidation

noun
  • The act or process of consolidating, making firm, or uniting; the state of being consolidated 

  • The combination of several actions into one. 

  • A solidification into a firm dense mass. It is usually applied to induration (swelling or hardening of normally soft tissue) of a normally aerated lung. 

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