"biadjacency" meaning in English

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      "expansion": "bi- + adjacency",
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  "etymology_text": "From bi- + adjacency.",
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  "lang_code": "en",
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        {
          "ref": "2015 November 7, “From Innovation to Diversification: A Simple Competitive Model”, in PLOS ONE, →DOI:",
          "text": "The matrix can be thought as the biadjacency matrix of the bipartite network [21 –23 ] in which one layer is represented by countries and the other by exported products.",
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      ],
      "glosses": [
        "The adjacency of a bipartite graph"
      ],
      "id": "en-biadjacency-en-noun-JKObl~lT",
      "links": [
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          "mathematics",
          "mathematics"
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        [
          "adjacency",
          "adjacency"
        ],
        [
          "bipartite",
          "bipartite"
        ],
        [
          "graph",
          "graph"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The adjacency of a bipartite graph"
      ],
      "topics": [
        "mathematics",
        "sciences"
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  "word": "biadjacency"
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  ],
  "etymology_text": "From bi- + adjacency.",
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  "lang_code": "en",
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          "text": "The matrix can be thought as the biadjacency matrix of the bipartite network [21 –23 ] in which one layer is represented by countries and the other by exported products.",
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        }
      ],
      "glosses": [
        "The adjacency of a bipartite graph"
      ],
      "links": [
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          "mathematics",
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        [
          "adjacency",
          "adjacency"
        ],
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          "bipartite",
          "bipartite"
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          "graph",
          "graph"
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      "raw_glosses": [
        "(mathematics) The adjacency of a bipartite graph"
      ],
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        "mathematics",
        "sciences"
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