parallelepiped
/ˌpæɹəˌlɛləˈpaɪpɪd/noun
parallelepiped is a noun meaning “A solid figure, having six faces, all parallelograms, all opposite faces being similar and parallel” (English Wiktionary, September 2026). It is spelled P-A-R-A-L-L-E-L-E-P-I-P-E-D, and it appears about once in every 36 million words in written English (wordfreq, 2021 data). The plural of parallelepiped is parallelepipeds.
What does parallelepiped mean?
noun
- 1
A solid figure, having six faces, all parallelograms, all opposite faces being similar and parallel.
A cuboid is a rectangular parallelepiped.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce parallelepiped?
- /ˌpæɹəˌlɛləˈpaɪpɪd/
- /ˌpæɹəlɛˈlɛpɪpɛd/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-ca-parallelepiped.opus, Wikimedia Commons (author and licence on each file's page).
Forms of parallelepiped
- parallelepipeds plural
- parallelepipedon
- parallelopiped
- parallelopipedon
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is parallelepiped?
Parallelepiped appears about once in every 36 million words in written English, the 184,844th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Parallelepiped in Spanish, French, German and Portuguese
In the sense solid figure:
| Language | Words |
|---|---|
| French | parallélépipède |
| German | Parallelflach, Parallelepiped, Spat |
| Portuguese | paralelepípedo |
| Spanish | paralelepípedo |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does parallelepiped come from?
From Latin parallēlepipedum, from Ancient Greek παραλληλεπίπεδος (parallēlepípedos, “with parallel surfaces”), from παράλληλος (parállēlos, “parallel”) + ἐπίπεδος (epípedos, “plane”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).