"currency detector" meaning in English

{
  "forms": [
    {
      "form": "currency detectors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "currency detector (plural currency detectors)",
      "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": "Mandarin terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A device that determines whether notes or coins are genuine or counterfeit."
      ],
      "id": "en-currency_detector-en-noun-oclUYvNJ",
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "counterfeit detector",
          "word": "驗鈔機"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "yànchāojī",
          "sense": "counterfeit detector",
          "word": "验钞机"
        }
      ],
      "wikipedia": [
        "currency detector"
      ]
    }
  ],
  "word": "currency detector"
}

{
  "forms": [
    {
      "form": "currency detectors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "currency detector (plural currency detectors)",
      "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",
        "Mandarin terms with redundant transliterations"
      ],
      "glosses": [
        "A device that determines whether notes or coins are genuine or counterfeit."
      ],
      "wikipedia": [
        "currency detector"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "counterfeit detector",
      "word": "驗鈔機"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "yànchāojī",
      "sense": "counterfeit detector",
      "word": "验钞机"
    }
  ],
  "word": "currency detector"
}