"molva blu" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "blue ling"
      },
      "expansion": "“blue ling”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "blue ling"
      },
      "expansion": "Literally, “blue ling”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “blue ling”.",
  "forms": [
    {
      "form": "molve blu",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "molve blu"
      },
      "expansion": "molva blu f (plural molve blu)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "it",
          "name": "Fish",
          "orig": "it:Fish",
          "parents": [
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "blue ling (Molva dypterygia)"
      ],
      "id": "en-molva_blu-it-noun-FmMLW2E9",
      "related": [
        {
          "word": "molva"
        },
        {
          "word": "molva occhiona"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "molva blu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "blue ling"
      },
      "expansion": "“blue ling”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "blue ling"
      },
      "expansion": "Literally, “blue ling”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “blue ling”.",
  "forms": [
    {
      "form": "molve blu",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "molve blu"
      },
      "expansion": "molva blu f (plural molve blu)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "related": [
    {
      "word": "molva"
    },
    {
      "word": "molva occhiona"
    }
  ],
  "senses": [
    {
      "categories": [
        "Entries missing English vernacular names of taxa",
        "Entries using missing taxonomic name (species)",
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian feminine nouns",
        "Italian lemmas",
        "Italian multiword terms",
        "Italian nouns",
        "it:Fish"
      ],
      "glosses": [
        "blue ling (Molva dypterygia)"
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "molva blu"
}