What does "120-cell" mean?

A four-dimensional polytope, analogous to a dodecahedron, whose 120 bounding facets are dodecahedra.

120-cell

Common synonyms include: dodecacontachoron, dodecaplex, hecatonicosachoron, hecatonicosahedroid, hyperdodecahedron, polydodecahedron.

noun

noun ·Rare ·Advanced level

Noun

1
A four-dimensional polytope, analogous to a dodecahedron, whose 120 bounding facets are dodecahedra.
"The triacontagonal projection of the 120-cell was first drawn by W. A. Wythoff, but not in reproducible form."

"The triacontagonal projection of the 120-cell was first drawn by W. A. Wythoff, but not in reproducible form."

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.