hecatonicosachoron

plural hecatonicosachorons · plural hecatonicosachora

1. geometryA four-dimensional object analogous to a dodecahedron, constructed out of one hundred and twenty dodecahedra, arranged 4 to a vertex.

   The pentachoron, hypercube, orthoplex, hecatonicosachoron, and hexacosichoron are analogues of the ordinary Platonic solids.

   2012, Richard Elwes, How to Solve the Da Vinci Code

   2 more examples

   The pentachoron, the hecatonicosachoron, and the hexacosichoron all have dichoral angles which are not divisors of 2π, and consequently, they are not space-filling.

   2011, Jin Akiyama, Ikuro Sato, The element number of the convex regular polytopes, page 271

   The hecatonicosachoron (dodecaplex or 120-cell) and the hexacosichoron (tet- raplex or 600-cell) are also unique polychora, which have no analogs in higher dimensions.

   2012, Andrzej Katunin, Fractals based on regular convex polytopes, page 57

   Synonyms: 120-cell, dodecacontachoron