or parallelopiped (ˌpærəˌlɛləˈpaɪpɛd), parallelepipedon or parallelopipedon (ˌpærəˌlɛləˈpaɪpɪdən)
nounWord forms: plural-pipeds or -pipeda (-ˈpaɪpɪdə)
a geometric solid whose six faces are parallelograms
Word origin
C16: from Greek parallēlepipedon; from parallēlosparallel + epipedon plane surface, from epi- + pedon ground
parallelepiped in American English
(ˌpærəˌlɛləˈpaɪˌpəd; ˌpærəˌlɛləˈpɪpˌəd)
noun
a solid with six faces, each of which is a parallelogram
: also ˌparalˌleleˈpipeˌdon (ˌpærəˌlɛləˈpɪpəˌdɑn)
Word origin
Gr parallēlepipedon < parallēlos, parallel + epipedos, on the ground, plane < epi, upon (see epi-) + pedon, the ground < IE *pedom (> Sans padám, footstep) < base *ped-, foot