# parallelepiped

[ par-uh-lel-uh-pahy-pid, -pip-id ]

## noun

1. a prism with six faces, all parallelograms.

parallelepiped

/ ˌpærəˌlɛləˈpaɪpɛd; ˌpærəˌlɛləˈpaɪpɪdən /

## noun

1. a geometric solid whose six faces are parallelograms
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

parallelepiped

/ păr′ə-lĕl′ə-pīpĭd,-pĭpĭd /

1. A polyhedron with six faces, each a parallelogram and each being parallel to the opposite face.

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## Other Words From

• par·al·lel·e·pip·e·dic [par-, uh, -lel-, uh, -, pip, -i-dik], paral·lele·pipe·donal paral·lele·pipe·dous adjective
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## Word History and Origins

Origin of parallelepiped1

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
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## Word History and Origins

Origin of parallelepiped1

C16: from Greek parallēlepipedon; from parallēlos parallel + epipedon plane surface, from epi- + pedon ground
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## Example Sentences

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

Euclid calls this solid henceforth a parallelepiped, though he never defines the word.

A rectangular parallelepiped has, as a rule, the three edges unequal, which meet at a point.

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.