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parallelepiped definition

par·al·lel·e·pi·ped (par′ə lel′ə pī′pəd′, -pip′əd′)

noun

a solid with six faces, each of which is a parallelogram
also parallelepipedon par′·al·lel′·e·pip′·e·don′ (-pip′ə dän′)

Etymology: Gr parallēlepipedon < parallēlos, parallel + epipedos, on the ground, plane < epi, upon (see epi-) + pedon, the ground < IE *pedom (> Sans padám, footstep) < base *ped-, foot

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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