"Lewis gun" meaning in English

{
  "etymology_text": "After its designer Isaac Newton Lewis.",
  "forms": [
    {
      "form": "Lewis guns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Lewis gun (plural Lewis guns)",
      "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": "Firearms",
          "orig": "en:Firearms",
          "parents": [
            "Weapons",
            "Hunting",
            "Military",
            "Tools",
            "Human activity",
            "Society",
            "Technology",
            "Human behaviour",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A light machine gun adopted by Belgium and the UK before World War I and widely used."
      ],
      "id": "en-Lewis_gun-en-noun-76tJ9Wly",
      "raw_glosses": [
        "(historical) A light machine gun adopted by Belgium and the UK before World War I and widely used."
      ],
      "tags": [
        "historical"
      ],
      "wikipedia": [
        "Isaac Newton Lewis",
        "Lewis gun"
      ]
    }
  ],
  "word": "Lewis gun"
}

{
  "etymology_text": "After its designer Isaac Newton Lewis.",
  "forms": [
    {
      "form": "Lewis guns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Lewis gun (plural Lewis guns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Firearms"
      ],
      "glosses": [
        "A light machine gun adopted by Belgium and the UK before World War I and widely used."
      ],
      "raw_glosses": [
        "(historical) A light machine gun adopted by Belgium and the UK before World War I and widely used."
      ],
      "tags": [
        "historical"
      ],
      "wikipedia": [
        "Isaac Newton Lewis",
        "Lewis gun"
      ]
    }
  ],
  "word": "Lewis gun"
}