Definition
Rectilineal is a synonym of rectilinear. It means consisting of straight lines. This term is often used interchangeably with rectilinear, describing shapes and movements that follow straight paths. A rectilineal figure, for example, is made up of straight lines only. Imagine the design of a circuit board or the layout of a chessboard; both are examples of rectilineal arrangements. It conveys precision and order in geometric contexts.