concretization vs symbolization

concretization

noun
  • An inability to generalize or perform abstraction accompanied by excessive concentration on specific details, as in a mental disorder or in cognition by children. 

  • Something specific which is the result of a process of concretizing a general principle or idea. 

  • The process of concretizing a general principle or idea by delineating, particularizing, or exemplifying it. 

symbolization

noun
  • The unconscious mental representation of one thing by another. 

  • The act of symbolizing; the use of symbols to represent things, or the investing of things with a symbolic meaning. 

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