"mass driver" meaning in English

{
  "forms": [
    {
      "form": "mass drivers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mass driver (plural mass drivers)",
      "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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          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
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          "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": "Electromagnetism",
          "orig": "en:Electromagnetism",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Space access",
          "orig": "en:Space access",
          "parents": [
            "Astronautics",
            "Applied sciences",
            "Space",
            "Sciences",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Transport",
          "orig": "en:Transport",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A proposed kind of electromagnetic catapult that could be used for space launches without the need for a rocket."
      ],
      "id": "en-mass_driver-en-noun-W4cag7KY",
      "links": [
        [
          "astronautics",
          "astronautics"
        ],
        [
          "electromagnetic",
          "electromagnetic"
        ],
        [
          "catapult",
          "catapult"
        ],
        [
          "space",
          "space"
        ],
        [
          "launch",
          "launch"
        ],
        [
          "rocket",
          "rocket"
        ]
      ],
      "raw_glosses": [
        "(astronautics) A proposed kind of electromagnetic catapult that could be used for space launches without the need for a rocket."
      ],
      "topics": [
        "aerospace",
        "astronautics",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "mass driver"
      ]
    }
  ],
  "word": "mass driver"
}

{
  "forms": [
    {
      "form": "mass drivers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mass driver (plural mass drivers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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:Electromagnetism",
        "en:Space access",
        "en:Transport"
      ],
      "glosses": [
        "A proposed kind of electromagnetic catapult that could be used for space launches without the need for a rocket."
      ],
      "links": [
        [
          "astronautics",
          "astronautics"
        ],
        [
          "electromagnetic",
          "electromagnetic"
        ],
        [
          "catapult",
          "catapult"
        ],
        [
          "space",
          "space"
        ],
        [
          "launch",
          "launch"
        ],
        [
          "rocket",
          "rocket"
        ]
      ],
      "raw_glosses": [
        "(astronautics) A proposed kind of electromagnetic catapult that could be used for space launches without the need for a rocket."
      ],
      "topics": [
        "aerospace",
        "astronautics",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "mass driver"
      ]
    }
  ],
  "word": "mass driver"
}