n. [ F., fr. L. rectus right + angulus angle. See Right, and Angle. ] (Geom.) A four-sided figure having only right angles; a right-angled parallelogram. [ 1913 Webster ]
☞ As the area of a rectangle is expressed by the product of its two dimensions, the term rectangle is sometimes used for product; as, the rectangle of a and b, that is, ab. [ 1913 Webster ]
a. Rectangular. [ R. ] [ 1913 Webster ]
a. Rectangular. Hutton. [ 1913 Webster ]