"periodisk" meaning in Norwegian Bokmål

{
  "etymology_templates": [
    {
      "args": {
        "1": "nb",
        "2": "grc",
        "3": "περιοδικός"
      },
      "expansion": "Ancient Greek περιοδικός (periodikós)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek περιοδικός (periodikós).",
  "forms": [
    {
      "form": "periodisk",
      "tags": [
        "indefinite",
        "singular"
      ]
    },
    {
      "form": "periodiske",
      "tags": [
        "definite",
        "plural",
        "singular"
      ]
    }
  ],
  "lang": "Norwegian Bokmål",
  "lang_code": "nb",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Norwegian Bokmål entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "periodic"
      ],
      "id": "en-periodisk-nb-adj-qPmwg7tn",
      "links": [
        [
          "periodic",
          "periodic"
        ]
      ],
      "related": [
        {
          "word": "periode"
        }
      ]
    }
  ],
  "word": "periodisk"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "nb",
        "2": "grc",
        "3": "περιοδικός"
      },
      "expansion": "Ancient Greek περιοδικός (periodikós)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek περιοδικός (periodikós).",
  "forms": [
    {
      "form": "periodisk",
      "tags": [
        "indefinite",
        "singular"
      ]
    },
    {
      "form": "periodiske",
      "tags": [
        "definite",
        "plural",
        "singular"
      ]
    }
  ],
  "lang": "Norwegian Bokmål",
  "lang_code": "nb",
  "pos": "adj",
  "related": [
    {
      "word": "periode"
    }
  ],
  "senses": [
    {
      "categories": [
        "Norwegian Bokmål adjectives",
        "Norwegian Bokmål entries with incorrect language header",
        "Norwegian Bokmål lemmas",
        "Norwegian Bokmål terms derived from Ancient Greek",
        "Pages with 4 entries",
        "Pages with entries"
      ],
      "glosses": [
        "periodic"
      ],
      "links": [
        [
          "periodic",
          "periodic"
        ]
      ]
    }
  ],
  "word": "periodisk"
}