delineation

from The Century Dictionary.

• noun The act or process of delineating; the act of representing, portraying, or depicting.
• noun Representation, whether pictorially or in words; sketch; description.
• noun Synonyms Sketch, etc. (see outline,n.); drawing, draft, portrait; account, description.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act of representing, portraying, or describing, as by lines, diagrams, sketches, etc.; drawing an outline; ; 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.
• noun A delineated picture; representation; sketch; description in words.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The act of delineating; depiction
• noun art An image of the outline of an object
• noun A graphic verbal description

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a drawing of the outlines of forms or objects
• noun representation by drawing or painting etc
• noun a graphic or vivid verbal description