"space-filling curve" meaning in English

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      "expansion": "space-filling curve (plural space-filling curves)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Mathematical analysis",
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            "Formal sciences",
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      "examples": [
        {
          "text": "From space-filling curves it can be deduced that ℝ² and ℝ³ have the same cardinality as ℝ."
        }
      ],
      "glosses": [
        "a curve whose range contains the entire 2-dimensional unit square (or the 3-dimensional unit cube)"
      ],
      "id": "en-space-filling_curve-en-noun-VW-SAg9O",
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          "mathematical analysis",
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          "curve",
          "curve"
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        "(mathematical analysis) a curve whose range contains the entire 2-dimensional unit square (or the 3-dimensional unit cube)"
      ],
      "related": [
        {
          "word": "Peano curve"
        }
      ],
      "topics": [
        "mathematical-analysis",
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Gosper curve",
        "space-filling curve"
      ]
    }
  ],
  "word": "space-filling curve"
}

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  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Peano curve"
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        {
          "text": "From space-filling curves it can be deduced that ℝ² and ℝ³ have the same cardinality as ℝ."
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        "a curve whose range contains the entire 2-dimensional unit square (or the 3-dimensional unit cube)"
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        "(mathematical analysis) a curve whose range contains the entire 2-dimensional unit square (or the 3-dimensional unit cube)"
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      "wikipedia": [
        "Gosper curve",
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  "word": "space-filling curve"
}