"nullvekst" meaning in Norwegian Nynorsk

{
  "etymology_templates": [
    {
      "args": {
        "1": "nn",
        "2": "null",
        "3": "vekst"
      },
      "expansion": "null + vekst",
      "name": "af"
    }
  ],
  "etymology_text": "From null + vekst.",
  "forms": [
    {
      "form": "nullveksten",
      "tags": [
        "definite",
        "singular"
      ]
    }
  ],
  "lang": "Norwegian Nynorsk",
  "lang_code": "nn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Norwegian Nynorsk entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "zero growth"
      ],
      "id": "en-nullvekst-nn-noun-GD-fw1Gt",
      "links": [
        [
          "zero growth",
          "zero growth#English"
        ]
      ],
      "tags": [
        "masculine",
        "uncountable"
      ]
    }
  ],
  "word": "nullvekst"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "nn",
        "2": "null",
        "3": "vekst"
      },
      "expansion": "null + vekst",
      "name": "af"
    }
  ],
  "etymology_text": "From null + vekst.",
  "forms": [
    {
      "form": "nullveksten",
      "tags": [
        "definite",
        "singular"
      ]
    }
  ],
  "lang": "Norwegian Nynorsk",
  "lang_code": "nn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Norwegian Nynorsk compound terms",
        "Norwegian Nynorsk entries with incorrect language header",
        "Norwegian Nynorsk lemmas",
        "Norwegian Nynorsk masculine nouns",
        "Norwegian Nynorsk nouns",
        "Norwegian Nynorsk uncountable nouns"
      ],
      "glosses": [
        "zero growth"
      ],
      "links": [
        [
          "zero growth",
          "zero growth#English"
        ]
      ],
      "tags": [
        "masculine",
        "uncountable"
      ]
    }
  ],
  "word": "nullvekst"
}