concretization

Short definition from Wiktionary

Noun

1. 1
   The process of concretizing a general principle or idea by delineating, particularizing, or exemplifying it.
2. 2
   Something specific which is the result of a process of concretizing a general principle or idea.
3. 3
   An inability to generalize or perform abstraction accompanied by excessive concentration on specific details, as in a mental disorder or in cognition by children.