elaboration in WordNet English dictionary

1. addition of extra material or illustration or clarifying detail
   "a few remarks added in amplification and defense"; "an elaboration of the sketch followed"
   amplification  elaboration 
   
2. marked by elaborately complex detail
   elaborateness  elaboration  intricacy  involution 
   
3. developing in intricate and painstaking detail
   elaboration  working out 
   
4. a discussion that provides additional information
   expansion  enlargement  elaboration 
   
5. the result of improving something
   "he described a refinement of this technique"
   refinement  elaboration