You searched for: “parallelogram
parallelogram (s) (noun), parallelograms (pl)
A four-sided plane figure in which both pairs of opposite sides are parallel and of equal length, and the opposite angles are equal: A square is a parallelogram, even when it is tilted to one side, and as long as the sides are parallel to each other and are of the same lengths.
(Greek: that which may be turned or spun around; magician's circle; equilateral parallelogram in which only the opposite angles are equal)