#rectangularity__oblongness  the property of being shaped like a rectangle
  supertype:  angularity  the property possessed by a shape that has angles
  subtype:  orthogonality  the quality of lying or intersecting at right angles
  subtype:  perpendicularity  the quality of being at right angles to a given line or plane (especially the plane of the horizon)
  subtype:  squareness  the property of being shaped like a square

No statement uses or specializes rectangularity; click here to add one.