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parallelepiped

[par-uh-lel-uh-pahy-pid, -pip-id] /ˌpær əˌlɛl əˈpaɪ pɪd, -ˈpɪp ɪd/
noun
1.
a prism with six faces, all parallelograms.
Also, parallelepipedon
[par-uh-lel-uh-pip-i-don, -duh n] /ˌpær əˌlɛl əˈpɪp ɪˌdɒn, -dən/ (Show IPA),
parallelopiped.
Origin of parallelepiped
1560-1570
1560-70; < Greek parallēlepípedon body with parallel surfaces, equivalent to parállēl(os) parallel + epípedon plane, noun use of neuter of epípedos flat, equivalent to epi- epi- + pédon ground
Related forms
parallelepipedic
[par-uh-lel-uh-pip-i-dik] /ˌpær əˌlɛl əˈpɪp ɪ dɪk/ (Show IPA),
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for parallelepiped
Historical Examples
• That a parallel projection of a parallelepiped is a parallelepiped.

• The same may be said for the proposition about the diagonal plane of a parallelepiped.

David Eugene Smith
• The volume of any parallelepiped is equal to the product of its base by its altitude.

David Eugene Smith
• Archimedes proves that the volume of the solid so cut off is one sixth part of the volume of the parallelepiped.

Thomas Little Heath
• "parallelepiped" is from the Greek parallelos (parallel) and epipedon (a plane surface), from epi (on) and pedon (ground).

David Eugene Smith
• The opposite lateral faces of a parallelepiped are congruent and parallel.

David Eugene Smith
• Euclid calls this solid henceforth a parallelepiped, though he never defines the word.

• The volume of any parallelepiped, or of any triangular prism, is measured by the product of base and altitude.

• But a triangular prism is equal in volume to a parallelepiped which has the same base and altitude.

British Dictionary definitions for parallelepiped

parallelepiped

/ˌpærəˌlɛləˈpaɪpɛd/
noun
1.
a geometric solid whose six faces are parallelograms
Word Origin
C16: from Greek parallēlepipedon; from parallēlosparallel + epipedon plane surface, from epi- + pedon ground
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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parallelepiped in Science
 parallelepiped   (pār'ə-lěl'ə-pī'pĭd, -pĭp'ĭd)    A polyhedron with six faces, each a parallelogram and each being parallel to the opposite face.
The American Heritage® Science Dictionary