"magnetarium" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "magnet",
        "3": "arium"
      },
      "expansion": "magnet + -arium",
      "name": "suffix"
    }
  ],
  "etymology_text": "From magnet + -arium.",
  "forms": [
    {
      "form": "magnetariums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "magnetarium (plural magnetariums)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
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            "Entries with incorrect language header",
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          "source": "w"
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        {
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          "parents": [],
          "source": "w"
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      ],
      "glosses": [
        "An instrument for illustrating the magnetism of the earth."
      ],
      "id": "en-magnetarium-en-noun-2QYnqKSw",
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "magnetism",
          "magnetism"
        ],
        [
          "earth",
          "earth"
        ]
      ],
      "raw_glosses": [
        "(historical) An instrument for illustrating the magnetism of the earth."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "magnetarium"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "magnet",
        "3": "arium"
      },
      "expansion": "magnet + -arium",
      "name": "suffix"
    }
  ],
  "etymology_text": "From magnet + -arium.",
  "forms": [
    {
      "form": "magnetariums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "magnetarium (plural magnetariums)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
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        "English terms suffixed with -arium",
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        "Pages with 1 entry"
      ],
      "glosses": [
        "An instrument for illustrating the magnetism of the earth."
      ],
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "magnetism",
          "magnetism"
        ],
        [
          "earth",
          "earth"
        ]
      ],
      "raw_glosses": [
        "(historical) An instrument for illustrating the magnetism of the earth."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "magnetarium"
}