Technical Drawing for an Architect's Plans
This page is the CodyCross answer for the clue below from Brazilian Tour, Group 778, Puzzle 3 (Feijoada and Pastel).
Question is: Technical Drawing for an Architect's Plans
and the answer is: BLUEPRINT
Word Meaning:
BLUEPRINT — 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.
Definitions from Wiktionary.