"laserium" meaning in English

{
  "etymology_text": "Originally a trade name. Compare planetarium.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "laserium",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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": "English genericized trademarks",
          "parents": [
            "Genericized trademarks",
            "Terms by etymology",
            "Trademarks",
            "Terms by usage"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1999, Martha C. Lawrence, Aquarius Descending",
          "text": "Like a laserium, the walls and ceiling had become a three-hundred-sixty-degree movie screen, and a very real image of outer space—probably footage from NASA's Voyager expedition—surrounded us.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An indoor laser light show."
      ],
      "id": "en-laserium-en-noun-s9EnKbsL",
      "links": [
        [
          "indoor",
          "indoor"
        ],
        [
          "laser",
          "laser"
        ],
        [
          "light show",
          "light show"
        ]
      ]
    }
  ],
  "word": "laserium"
}

{
  "etymology_text": "Originally a trade name. Compare planetarium.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "laserium",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English genericized trademarks",
        "English lemmas",
        "English nouns",
        "English nouns with unknown or uncertain plurals",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1999, Martha C. Lawrence, Aquarius Descending",
          "text": "Like a laserium, the walls and ceiling had become a three-hundred-sixty-degree movie screen, and a very real image of outer space—probably footage from NASA's Voyager expedition—surrounded us.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An indoor laser light show."
      ],
      "links": [
        [
          "indoor",
          "indoor"
        ],
        [
          "laser",
          "laser"
        ],
        [
          "light show",
          "light show"
        ]
      ]
    }
  ],
  "word": "laserium"
}