a design plan or other technical drawing.
• something that acts as a plan, model, or template: a vague blueprint for fundamental land redistribution.
verb [ with obj. ]
draw up (a plan or model): (as adj. blueprinted) : a neatly blueprinted scheme.
ORIGIN late 19th cent.: from the original process in which prints were composed of white lines on a blue ground or of blue lines on a white ground.