"space simulator" meaning in English

{
  "forms": [
    {
      "form": "space simulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "space simulator (plural space simulators)",
      "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"
        },
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronautics",
          "orig": "en:Astronautics",
          "parents": [
            "Applied sciences",
            "Space",
            "Sciences",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Space",
          "orig": "en:Space",
          "parents": [
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any device that attempts to simulate the environment of space, especially one used to test components of space vehicles"
      ],
      "id": "en-space_simulator-en-noun-uM2nayw1",
      "links": [
        [
          "simulate",
          "simulate"
        ],
        [
          "environment",
          "environment"
        ],
        [
          "space",
          "space"
        ],
        [
          "component",
          "component"
        ],
        [
          "space vehicle",
          "space vehicle"
        ]
      ],
      "related": [
        {
          "word": "space simulation"
        }
      ]
    }
  ],
  "word": "space simulator"
}

{
  "forms": [
    {
      "form": "space simulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "space simulator (plural space simulators)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "space simulation"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Astronautics",
        "en:Space"
      ],
      "glosses": [
        "Any device that attempts to simulate the environment of space, especially one used to test components of space vehicles"
      ],
      "links": [
        [
          "simulate",
          "simulate"
        ],
        [
          "environment",
          "environment"
        ],
        [
          "space",
          "space"
        ],
        [
          "component",
          "component"
        ],
        [
          "space vehicle",
          "space vehicle"
        ]
      ]
    }
  ],
  "word": "space simulator"
}