"Feigenbaum constant" meaning in English

{
  "etymology_text": "Named after the mathematician Mitchell Feigenbaum.",
  "forms": [
    {
      "form": "Feigenbaum constants",
      "tags": [
        "plural"
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      "expansion": "Feigenbaum constant (plural Feigenbaum constants)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Mathematics",
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          "name": "Systems theory",
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      ],
      "glosses": [
        "Either of two mathematical constants that express ratios in a bifurcation diagram for a nonlinear map."
      ],
      "id": "en-Feigenbaum_constant-en-noun-1hDSWLav",
      "links": [
        [
          "mathematics",
          "mathematics"
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        [
          "mathematical",
          "mathematical"
        ],
        [
          "constant",
          "constant"
        ],
        [
          "ratio",
          "ratio"
        ],
        [
          "bifurcation",
          "bifurcation"
        ],
        [
          "diagram",
          "diagram"
        ],
        [
          "nonlinear",
          "nonlinear"
        ],
        [
          "map",
          "map"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Either of two mathematical constants that express ratios in a bifurcation diagram for a nonlinear map."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Feigenbaum constants"
      ]
    }
  ],
  "word": "Feigenbaum constant"
}

{
  "etymology_text": "Named after the mathematician Mitchell Feigenbaum.",
  "forms": [
    {
      "form": "Feigenbaum constants",
      "tags": [
        "plural"
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Either of two mathematical constants that express ratios in a bifurcation diagram for a nonlinear map."
      ],
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          "mathematics"
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          "nonlinear",
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          "map",
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        "(mathematics) Either of two mathematical constants that express ratios in a bifurcation diagram for a nonlinear map."
      ],
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        "mathematics",
        "sciences"
      ],
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        "Feigenbaum constants"
      ]
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  "word": "Feigenbaum constant"
}