'Blue print' definitions:

Definition of 'Blue print'

From: GCIDE

Print \Print\, n. [See Print, v., Imprint, n.]
1. A mark made by impression; a line, character, figure, or indentation, made by the pressure of one thing on another; as, the print of teeth or nails in flesh; the print of the foot in sand or snow. [1913 Webster]
Where print of human feet was never seen. --Dryden. [1913 Webster]
2. A stamp or die for molding or impressing an ornamental design upon an object; as, a butter print. [1913 Webster]
3. That which receives an impression, as from a stamp or mold; as, a print of butter. [1913 Webster]
4. Printed letters; the impression taken from type, as to excellence, form, size, etc.; as, small print; large print; this line is in print. [1913 Webster]
5. That which is produced by printing. Specifically: (a) An impression taken from anything, as from an engraved plate. "The prints which we see of antiquities." --Dryden. (b) A printed publication, more especially a newspaper or other periodical. --Addison. (c) A printed cloth; a fabric figured by stamping, especially calico or cotton cloth. (d) A photographic copy, or positive picture, on prepared paper, as from a negative, or from a drawing on transparent paper. [1913 Webster]
6. (Founding) A core print. See under Core. [1913 Webster]
Blue print, a copy in white lines on a blue ground, of a drawing, plan, tracing, etc., or a positive picture in blue and white, from a negative, produced by photographic printing on peculiarly prepared paper.
In print. (a) In a printed form; issued from the press; published. --Shak. (b) To the letter; with accurateness. "All this I speak in print." --Shak.
Out of print. See under Out.
Print works, a factory where cloth, as calico, is printed. [1913 Webster]