parallelepiped n 1: a prism whose bases are parallelograms [syn: {parallelepiped}, {parallelopiped}, {parallelepipedon}, {parallelopipedon}]
parallelepiped \parallelepiped\ n. (Geometry) A prism whose bases are parallelograms. Syn: parallelopiped, parallelepipedon, parallelopipedon. [WordNet 1.5]