icosidodecahedron

noun

An Archimedean solid with thirty-two regular faces (twelve pentagons and twenty triangles).

Scrabble 27

Meanings

nounicosidodecahedron (plural icosidodecahedra or icosidodecahedrons)

plural icosidodecahedra · plural icosidodecahedrons

  1. An Archimedean solid with thirty-two regular faces (twelve pentagons and twenty triangles).

    Thus, there is a star octahedron, three star dodecahedrons, and fifty-nine star icosidodecahedrons.

    2004, Marc-Alain Ouaknin, The Mystery of Numbers, unnumbered page
    5 more examples

    […]together to form not only regular polyhedrons but rhombicosidodecahedrons, truncated icosidodecahedrons, and such.

    1961, The New Yorker, Volume 37, Part 4, page 172

    1992, Jean-Louis Verger-Gaugry, Quasicrystals and the Concept of Interpenetration in m35-approximant Crystals with Long-range Icosahedral Atomic Clustering, A. R. Yavari, Ordering and Disordering in Alloys, Elsevier Applied Science, page 498, A succession of 10 concentric icosidodecahedra centered at (0, 0, 0), forming a geometric sequence (the nᵗʰ one is τⁿ larger than the first one), is also put into evidence.

    The edges of the octahedron form three squares; the edges of the cuboctahedron form four hexagons, and the edges of the icosidodecahedron form six decagons.

    2004, David Darling, The Universal Book of Mathematics: From Abracadabra to Zeno's Paradoxes, page 263

    The dark-gray (online: red) icosahedra are part of the B clusters, the light-gray dodecahedra of the B’ clusters, and the (online: blue) icosidodecahedra of the M clusters.

    2009, Walter Steurer, Sofia Deloudi, Crystallography of Quasicrystals: Concepts, Methods and Structures, page 306

    Polyhedrons include prisms; pyramids; the Platonic solids, including tetrahedrons, cubes, octahedrons, dodecahedrons, and icosahedrons; the Archimedean solids, such as cuboctahedrons and icosidodecahedrons; and the Johnson solids, such as square pyramids and triangular cupolas (dome-shape).

    2010, Debra Ann Ross, Master Math: Geometry, Cengage Learning, page 306

Origin

  1. Englishicosi-
  2. Proto-Indo-European*dwoΗdeḱm̥
  3. Ancient Greekδώδεκᾰ (dṓdekă)
  4. Englishdodeca-
  5. Englishicosidodecahedron

From icosi- + dodeca- + -hedron.

Full word history & related roots →

Translations

Finnish 32-tahokas (kolmekymmenkaksitahokas)
  • 32-tahokas (kolmekymmenkaksitahokas)polyhedron
French icosidodécaèdre
  • icosidodécaèdrepolyhedron
Hungarian ikozidodekaéder
  • ikozidodekaéderpolyhedron
Italian icosidodecaedro
  • icosidodecaedropolyhedron
Polish 32-ościan
  • 32-ościanpolyhedron
Portuguese icosidodecaedro
  • icosidodecaedropolyhedron
Russian икосододекаэдр
  • икосододекаэдр (ikosododekaedr)polyhedron
Ukrainian ікосододекаедр
  • ікосододекаедр (ikosododekaedr)polyhedron
Cite this entry
APA

icosidodecahedron. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/icosidodecahedron

MLA

“icosidodecahedron.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/icosidodecahedron. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “icosidodecahedron,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/icosidodecahedron.

Source: icosidodecahedron on Wiktionary, CC BY-SA 4.0.