1. A contact print of a drawing or other image rendered as white lines on a blue background, especially such a print of an architectural plan or technical drawing. Also called cyanotype. 2. A mechanical drawing produced by any of various similar photographic processes, such as one that creates blue or black lines on a white background. 3. A detailed plan of action. See synonyms at plan. 4. A model or prototype.
TRANSITIVE VERB:
Inflected forms: blue·print·ed, blue·print·ing, blue·prints 1. To make a blueprint of. 2. To lay a plan for.