Source : Webster's Revised Unabridged Dictionary (1913)

Conventionalization \Con*ven`tion*al*i*za"tion\, n. (Fine Arts)
   (a) The act of making conventional.
   (b) The state of being conventional.

Source : WordNet®

conventionalization
     n : the act of conventionalizing; conforming to a conventional
         style [syn: {conventionalisation}]