elaboration

(noun) addition of extra material or illustration or clarifying detail. Synonyms: amplification. Examples: "A few remarks added in amplification and defense." "An elaboration of the sketch followed."

(noun) the result of improving something. Synonyms: refinement. Example: "He described a refinement of this technique."

(noun) a discussion that provides additional information. Synonyms: expansion, enlargement.

(noun) marked by elaborately complex detail. Synonyms: elaborateness, intricacy, involution.

(noun) developing in intricate and painstaking detail. Synonyms: working out.