pentachoron
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English
Etymology
From penta- (“five”) + -choron (“4-dimensional solid”), from Ancient Greek πέντε (pénte, “five”) and χῶρος (khôros, “room”).
Pronunciation
Noun
pentachoron (plural pentachorons or pentachora)
- (mathematics) A four-dimensional object analogous to a tetrahedron, constructed out of five tetrahedra.
- 2008, George Musser, The Complete Idiot's Guide to String Theory, page 174:
- A triangle becomes a tetrahedron (a type of pyramid), then a pentachoron (a hyperpyramid).
- 2008, Prabhakar Gupta et al., Design and Analysis of Algorithms, page 356:
- Geometrically, K3 relates to a triangle, K4 a tetrahedron, K5 a pentachoron, etc.
- 2013, Caspar Henderson, The Book of Barely Imagined Beings, page 7:
- The tetrahedron is a 3-simplex whose 4-simplex analog is the pentachoron, a four-dimensional body which can be orphographically projected onto a quincrux (as well as a pentagram and other shapes).
Synonyms
Hypernyms
Translations
four-dimensional object
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