block diagram

१ (a perspective diagram of three-dimensional object used orig. for physiographic illustration of parts of the earth’s surface but later adapted to other uses) त्रिमिति आकृति, खंडकाकृति (स्त्री.) २ (a drawing in which labelled squares, rectangles and other arbitrary figures represent the relative position and functions of the parts of an apparatus) स्थूल आरेख,