Rec"tan`gle (r?k"t??`g'l), 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.
&fist; 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.
Rec"tan`gle, a. Rectangular.
[R.]