prettygoodword: text: words are sexy (Default)
[personal profile] prettygoodword
parallelepiped - n., a polyhedron with six faces, each a parallelogram and each being parallel to its opposite face.


Now usually pronounced pah-re-lel-PIE-ped, but formerly and still somtimes pah-re-lel-EH-pi-ped -- that being closer to the Greek pronounciation of παραλληλεπίπεδον, having parallel plane surfaces. The επίπεδον (epipedon) means plane surface, but originally meant level, and before that, level ground. Note that a cube is a parallelepiped, as a square is just a special case parallelogram.

---L.

Date: 2009-07-13 07:38 pm (UTC)
From: [identity profile] packbat.livejournal.com
...I never saw that second "e"! Cool!

Date: 2009-07-14 12:22 am (UTC)
From: [identity profile] prettygoodword.livejournal.com
It's a ... subtle e.

---L.

Date: 2009-07-14 01:16 am (UTC)
From: [identity profile] packbat.livejournal.com
*groans appreciatively*

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