(ˈ)rek|taŋgyələ(r), -taiŋ- adjective
Etymology: Medieval Latin rectangul us having a right angle + English -ar
1. : having a flat surface shaped like a rectangle
2.
a. : crossing, lying, or meeting at a right angle
rectangular axes
b. : having edges, surfaces, or faces that meet at right angles : having faces or surfaces shaped like rectangles
rectangular parallelepipeds
rectangular blocks