"temperature gun" meaning in English

{
  "forms": [
    {
      "form": "temperature guns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "temperature gun (plural temperature 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": "topical",
          "langcode": "en",
          "name": "Measuring instruments",
          "orig": "en:Measuring instruments",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Temperature",
          "orig": "en:Temperature",
          "parents": [
            "Nature",
            "Weather",
            "All topics",
            "Atmosphere",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a handheld non-contact thermometer shaped roughly like a handgun"
      ],
      "id": "en-temperature_gun-en-noun-UzrvAerS",
      "links": [
        [
          "handheld",
          "handheld"
        ],
        [
          "non-contact",
          "non-contact"
        ],
        [
          "thermometer",
          "thermometer"
        ],
        [
          "handgun",
          "handgun"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ʌn"
    }
  ],
  "word": "temperature gun"
}

{
  "forms": [
    {
      "form": "temperature guns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "temperature gun (plural temperature guns)",
      "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",
        "Rhymes:English/ʌn",
        "Rhymes:English/ʌn/5 syllables",
        "en:Measuring instruments",
        "en:Temperature"
      ],
      "glosses": [
        "a handheld non-contact thermometer shaped roughly like a handgun"
      ],
      "links": [
        [
          "handheld",
          "handheld"
        ],
        [
          "non-contact",
          "non-contact"
        ],
        [
          "thermometer",
          "thermometer"
        ],
        [
          "handgun",
          "handgun"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ʌn"
    }
  ],
  "word": "temperature gun"
}