blueprint

Definitions

General English

  • noun a photographic print of a plan which consists of blue lines on a white background or white lines on a blue background
  • noun a plan for doing something

Computing

  • noun a copy of an original set of specifications or design in graphical form

Construction

  • A negative image reproduction having white lines on a blue background and made either from an original or from a positive intermediate print. Today the term almost always refers to diazo prints, which are architectural or working drawings having blue or black lines on a white background.

Information & Library Science

  • noun a photographic copy of construction plans usually printed in white on blue paper

Real Estate

  • noun a photographic print of a technical drawing with white lines printed on a blue background, or a similarly produced print with blue lines on a white background, usually used as a reference before and during the building process of an architectural or engineering design.
http://www.dictionarycentral.com/definition/blueprint.html