"bolt thrower" meaning in English

{
  "forms": [
    {
      "form": "bolt throwers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bolt thrower (plural bolt throwers)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Science fiction",
          "orig": "en:Science fiction",
          "parents": [
            "Fiction",
            "Speculative fiction",
            "Artistic works",
            "Genres",
            "Art",
            "Entertainment",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Star Wars",
          "orig": "en:Star Wars",
          "parents": [
            "American fiction",
            "Disney",
            "Film",
            "Science fiction",
            "Fiction",
            "United States",
            "Comics",
            "Television",
            "Entertainment",
            "Mass media",
            "Speculative fiction",
            "Artistic works",
            "North America",
            "Literature",
            "Broadcasting",
            "Culture",
            "Media",
            "Genres",
            "Art",
            "America",
            "Writing",
            "Telecommunications",
            "Society",
            "Communication",
            "Earth",
            "Human behaviour",
            "Language",
            "Technology",
            "All topics",
            "Nature",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Weapons",
          "orig": "en:Weapons",
          "parents": [
            "Hunting",
            "Military",
            "Tools",
            "Human activity",
            "Society",
            "Technology",
            "Human behaviour",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A mechanical crossbow used by Alliance Special Forces infiltration units in Star Wars."
      ],
      "id": "en-bolt_thrower-en-noun-OAB7K9Yd",
      "links": [
        [
          "science fiction",
          "science fiction"
        ]
      ],
      "raw_glosses": [
        "(science fiction) A mechanical crossbow used by Alliance Special Forces infiltration units in Star Wars."
      ],
      "topics": [
        "literature",
        "media",
        "publishing",
        "science-fiction"
      ]
    }
  ],
  "word": "bolt thrower"
}

{
  "forms": [
    {
      "form": "bolt throwers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bolt thrower (plural bolt throwers)",
      "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:Science fiction",
        "en:Star Wars",
        "en:Weapons"
      ],
      "glosses": [
        "A mechanical crossbow used by Alliance Special Forces infiltration units in Star Wars."
      ],
      "links": [
        [
          "science fiction",
          "science fiction"
        ]
      ],
      "raw_glosses": [
        "(science fiction) A mechanical crossbow used by Alliance Special Forces infiltration units in Star Wars."
      ],
      "topics": [
        "literature",
        "media",
        "publishing",
        "science-fiction"
      ]
    }
  ],
  "word": "bolt thrower"
}