consolidation vs simultaneity

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. 

simultaneity

noun
  • The quality or state of being simultaneous; simultaneousness. 

  • More than one complete musical texture occurring at the same time. This first appeared in the music of Charles Ives, and is common in the music of Conlon Nancarrow, and others. 

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