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1. A construction plan. It is called a blueprint because it historically has been printed on blue paper with white lines.

2. In photography, a copy of a periodical printed before final editing in which images are shown on blue paper.

3. Informal, a plan.


A detailed set of plans used as a guide for construction.Because of the economies of a very inexpensive method of creating and copying such plans, they were formerly characterized by white lines on blue paper.

References in periodicals archive ?
Sew a light blue print #1 strip and a medium blue tone-on-tone #1 strip together to make a band.
2 Sew together 4 pieced units, 2 each dark blue print, aqua print, violet print and yellow print 7 5/8" half-square triangles and 4 light gray 5 3/4" quarter-square triangles as shown in Diagram II to make Block D.
A blue print was presented by Railway Officials to the Chief Minister Naveen pattnaik about the Railway Projects in the state at secretariat on Monday.
Light blue print and dark blue print-cut from each:
Bangles, pounds 6, New Look; Black and white underwire swim suit, pounds 20, La Senza; Pink gingham underwire bikini top, pounds 18, bottoms, pounds 8, La Senza; Blue tankini with built-in bra and tummy control top, pounds 28, bottoms pounds 14, Ballet; Green and blue print underwire bikini, pounds 6, Matalan.
1 Referring to Diagram I, sew together 4 cream print 3 1/2" x 6 1/2" rectangles, 4 cream 3 1/2* x 4 1/2" rectangles, 4 cream 2 1/2" x 3 1/2" rectangles, 12 blue print rectangles, 8 blue texture rectangles, 4 red print rectangles and 1 tan print rectangle as shown to make A Block.
Sew an assorted light blue print strip and an assorted medium blue print strip together to make a band.