"5-cell" meaning in All languages combined

See 5-cell on Wiktionary

Noun [English]

IPA: /ˈfaɪvˌsɛl/ Forms: 5-cells [plural]
Etymology: From 5 + cell. Etymology templates: {{compound|en|5|cell}} 5 + cell Head templates: {{en-noun}} 5-cell (plural 5-cells)
  1. (geometry) A four-dimensional polytope, analogous to a tetrahedron, whose five bounding facets are tetrahedra. Wikipedia link: 5-cell Categories (topical): Geometry, Higher-dimensional geometry, Mathematics, Shapes Synonyms (4-dimensional polytope analogous to a tetrahedron): 4-simplex, pentachoron, pentahedroid, pentatope, tetrahedral pyramid Translations (four-dimensional polytope analogous to a tetrahedron): kvinĉelo (Esperanto), 5-cella [feminine] (Italian), ipertetraedro [masculine] (Italian), pentacoro [masculine] (Italian), 正五胞体 (seigohōtai) (alt: せいごほうたい) (Japanese)

Inflected forms

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  "etymology_text": "From 5 + cell.",
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          "ref": "1896, American Journal of Mathematics, page 181:",
          "text": "In every vertex of the 5-cell, 8-cell and 120-cell there are 4 concurring edges; in every vertex of the 24-cell, 8 edges.",
          "type": "quote"
        },
        {
          "text": "1988, Unnamed translator, L. A. Sidorov, Confuguration, article in Michiel Hazewinkel (editor) Encyclopaedia of Mathematics: An updated and annotated translation of the Soviet ‘Mathematical Encyclopaedia’, Volume 2: C, page 309,\nFor example, a 5-cell is bounded by five three-dimensional tetrahedra, an 8-cell by eight cubes, etc., the 5-cell and the 24-cell being duals of each other (the points correspond to spaces and lines to planes)."
        },
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          "ref": "2007, Steven R. Lay, Convex Sets and Their Applications, page 230:",
          "text": "If we call a regular polytope with m facets an m-cell, then in E⁴ we have the 5-cell with tetrahedral facets (the simplex), the 8-cell with cubic facets (the hypercube), the 16-cell with tetrahedral facets (the regular cross-polytope), the 24-cell with octahedral facets, the 120-cell with dodecahedral facets, and the 600-cell with tetrahedral facets.",
          "type": "quote"
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          "ref": "2008, Tony Robbin, Shadows of Reality: The Fourth Dimension in Relativity, Cubism, and Modern Thought, page 16:",
          "text": "Later in the same document, President Hall listed all of the university's four-dimensional models: four Brill models—the 5-cell, 8-cell, 16-cell, and 24-cell—along with seven spun glass models by T. P. Hall that \"illustrated rotations.\"",
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        "A four-dimensional polytope, analogous to a tetrahedron, whose five bounding facets are tetrahedra."
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        "(geometry) A four-dimensional polytope, analogous to a tetrahedron, whose five bounding facets are tetrahedra."
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          "sense": "4-dimensional polytope analogous to a tetrahedron",
          "word": "4-simplex"
        },
        {
          "sense": "4-dimensional polytope analogous to a tetrahedron",
          "word": "pentachoron"
        },
        {
          "sense": "4-dimensional polytope analogous to a tetrahedron",
          "word": "pentahedroid"
        },
        {
          "sense": "4-dimensional polytope analogous to a tetrahedron",
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          "code": "eo",
          "lang": "Esperanto",
          "sense": "four-dimensional polytope analogous to a tetrahedron",
          "word": "kvinĉelo"
        },
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          "sense": "four-dimensional polytope analogous to a tetrahedron",
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          "sense": "four-dimensional polytope analogous to a tetrahedron",
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        },
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          "code": "it",
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          "sense": "four-dimensional polytope analogous to a tetrahedron",
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          ],
          "word": "pentacoro"
        },
        {
          "alt": "せいごほうたい",
          "code": "ja",
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          "roman": "seigohōtai",
          "sense": "four-dimensional polytope analogous to a tetrahedron",
          "word": "正五胞体"
        }
      ],
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        "5-cell"
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      "ipa": "/ˈfaɪvˌsɛl/"
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          "ref": "2007, Steven R. Lay, Convex Sets and Their Applications, page 230:",
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      "sense": "4-dimensional polytope analogous to a tetrahedron",
      "word": "4-simplex"
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      "sense": "4-dimensional polytope analogous to a tetrahedron",
      "word": "pentachoron"
    },
    {
      "sense": "4-dimensional polytope analogous to a tetrahedron",
      "word": "pentahedroid"
    },
    {
      "sense": "4-dimensional polytope analogous to a tetrahedron",
      "word": "pentatope"
    },
    {
      "sense": "4-dimensional polytope analogous to a tetrahedron",
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  "translations": [
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "four-dimensional polytope analogous to a tetrahedron",
      "word": "kvinĉelo"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "four-dimensional polytope analogous to a tetrahedron",
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        "feminine"
      ],
      "word": "5-cella"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "four-dimensional polytope analogous to a tetrahedron",
      "tags": [
        "masculine"
      ],
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    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "four-dimensional polytope analogous to a tetrahedron",
      "tags": [
        "masculine"
      ],
      "word": "pentacoro"
    },
    {
      "alt": "せいごほうたい",
      "code": "ja",
      "lang": "Japanese",
      "roman": "seigohōtai",
      "sense": "four-dimensional polytope analogous to a tetrahedron",
      "word": "正五胞体"
    }
  ],
  "word": "5-cell"
}

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This page is a part of the kaikki.org machine-readable All languages combined dictionary. This dictionary is based on structured data extracted on 2024-12-15 from the enwiktionary dump dated 2024-12-04 using wiktextract (8a39820 and 4401a4c). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.