"Hadwiger number" meaning in English

{
  "forms": [
    {
      "form": "Hadwiger numbers",
      "tags": [
        "plural"
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      "expansion": "Hadwiger number (plural Hadwiger numbers)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Graph theory",
          "orig": "en:Graph theory",
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        }
      ],
      "glosses": [
        "For an undirected graph G: the size of the largest complete graph that can be obtained by contracting edges of G."
      ],
      "id": "en-Hadwiger_number-en-noun-q97rP~7u",
      "links": [
        [
          "graph theory",
          "graph theory"
        ],
        [
          "undirected graph",
          "undirected graph"
        ],
        [
          "complete graph",
          "complete graph"
        ],
        [
          "contract",
          "contract"
        ],
        [
          "edge",
          "edge"
        ]
      ],
      "raw_glosses": [
        "(graph theory) For an undirected graph G: the size of the largest complete graph that can be obtained by contracting edges of G."
      ],
      "topics": [
        "graph-theory",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Hadwiger number"
}

{
  "forms": [
    {
      "form": "Hadwiger numbers",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "Hadwiger number (plural Hadwiger numbers)",
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  "lang_code": "en",
  "pos": "noun",
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        "en:Graph theory"
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      "glosses": [
        "For an undirected graph G: the size of the largest complete graph that can be obtained by contracting edges of G."
      ],
      "links": [
        [
          "graph theory",
          "graph theory"
        ],
        [
          "undirected graph",
          "undirected graph"
        ],
        [
          "complete graph",
          "complete graph"
        ],
        [
          "contract",
          "contract"
        ],
        [
          "edge",
          "edge"
        ]
      ],
      "raw_glosses": [
        "(graph theory) For an undirected graph G: the size of the largest complete graph that can be obtained by contracting edges of G."
      ],
      "topics": [
        "graph-theory",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Hadwiger number"
}