pentachoron

noun

1. A four-dimensional object analogous to a tetrahedron, constructed out of five tetrahedra.

   A triangle becomes a tetrahedron (a type of pyramid), then a pentachoron (a hyperpyramid).

Where it comes from

From penta- (“five”) + -choron (“4-dimensional solid”), from Ancient Greek πέντε (pénte, “five”) and χῶρος (khôros, “room”).

Adapted from the Wiktionary entry pentachoron (CC BY-SA 4.0).

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