Source : Webster's Revised Unabridged Dictionary (1913)

Delineation \De*lin`e*a"tion\, n. [L. delineatio: cf. F.
   d['e]lin['e]ation.]
   1. The act of representing, portraying, or describing, as by
      lines, diagrams, sketches, etc.; drawing an outline; as,
      the delineation of a scene or face; in drawing and
      engraving, representation by means of lines, as
      distinguished from representation by means of tints and
      shades; accurate and minute representation, as
      distinguished from art that is careless of details, or
      subordinates them excessively.

   2. A delineated picture; representation; sketch; description
      in words.

            Their softest delineations of female beauty. --W.
                                                  Irving.

   Syn: Sketch; portrait; outline. See {Sketch}.

Source : WordNet®

delineation
     n 1: a graphic or vivid verbal description; "too often the
          narrative was interrupted by long word pictures"; "the
          author gives a depressing picture of life in Poland";
          "the pamphlet contained brief characterizations of
          famous Vermonters" [syn: {word picture}, {word-painting},
           {depiction}, {picture}, {characterization}, {characterisation}]
     2: a drawing of the outlines of forms or objects [syn: {depiction},
         {limning}, {line drawing}]
     3: representation by drawing or painting etc [syn: {depiction},
         {portrayal}]