blueprint

Definition

A type of paper-based reproduction process producing white-on-blue images by means of a photosensitive ferric compound, used primarily for technical and architecture's drawings, now largely replaced by other technologies.

Etymology

From blue + print. Introduced by Sir John Herschel in 1842.

Example Sentences

• "Ain't got no blueprint, just a purpose and a wrecking ball!"
• "This demonstrated serious intent, and the result is a report that should be a blueprint for subsequent assessments when road schemes are being put forward."
• "As a member of Black Sabbath, he helped draft the blueprints for heavy metal, but in conversation, he was always humble about his contributions to music."