(felinology) A colourpoint cat with blue markings.
(marine biology) A small oyster, Crassostrea virginica, from the eastern United States seaboard.
blueprint
blueprint
noun
(architecture, engineering, by extension) A detailed technical drawing (now often in some electronically storable and transmissible form).
(informal, by extension) Any detailed plan, whether literal or figurative.
A print produced with this process.
A type of paper-based reproduction process producing white-on-blue images, used primarily for technical and architecture's drawings, now largely replaced by other technologies.