Parallelopiped n. : A solid, the faces of which are six parallelograms, the opposite pairs being parallel, and equal to each other; a prism whose base is a parallelogram.

Example:
Maximum possible volume of the Parallelopiped formed by three position vectors?

Taxonomy
rectangular parallelepiped, parallelotope, parallelogram, vectors, parallelepipeds, free encyclopedia, parallel edges, the absolute, absolute value, b and c, plane, parallelopiped, six faces, pær, mirror image, the faces, vertex, two pairs.

Defination from the web: