agglutination vs simultaneity

agglutination

noun
  • The act of uniting by glue or other tenacious substance; the state of being thus united; adhesion of parts. 

  • Combination in which root words are united with little or no change of form or loss of meaning. See agglutinative. 

  • The clumping together of red blood cells or bacteria, usually in response to a particular antibody. 

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 agglutination and simultaneity occurred in a corpus of books? (source: Google Ngram Viewer )