"Louisiade" meaning in English

{
  "etymology_text": "Named in 1768 by Louis Antoine de Bougainville after Louis XV, the king of France (though they had been discovered long before).",
  "forms": [
    {
      "form": "the Louisiade",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Louisiade",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "An archipelago, southeast of New Guinea, consisting of a string of ten larger volcanic islands and 90 smaller coral islands."
      ],
      "id": "en-Louisiade-en-name-FDyRvCb2",
      "links": [
        [
          "archipelago",
          "archipelago"
        ],
        [
          "New Guinea",
          "New Guinea"
        ]
      ]
    }
  ],
  "word": "Louisiade"
}

{
  "etymology_text": "Named in 1768 by Louis Antoine de Bougainville after Louis XV, the king of France (though they had been discovered long before).",
  "forms": [
    {
      "form": "the Louisiade",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Louisiade",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English proper nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "An archipelago, southeast of New Guinea, consisting of a string of ten larger volcanic islands and 90 smaller coral islands."
      ],
      "links": [
        [
          "archipelago",
          "archipelago"
        ],
        [
          "New Guinea",
          "New Guinea"
        ]
      ]
    }
  ],
  "word": "Louisiade"
}