"detectograph" meaning in English

{
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    {
      "args": {
        "1": "en",
        "2": "detect",
        "3": "-o-",
        "4": "-graph"
      },
      "expansion": "detect + -o- + -graph",
      "name": "affix"
    }
  ],
  "etymology_text": "From detect + -o- + -graph. Possibly originally a trademark.",
  "forms": [
    {
      "form": "detectographs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "detectograph (plural detectographs)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "parents": [],
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          "parents": [],
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      "examples": [
        {
          "ref": "1914, United States Congress, Congressional edition:",
          "text": "There were no stenographers and no detectographs in those days, and there is no record of this interview, fraught with such tremendous benefit to Germany and all Europe[…]",
          "type": "quote"
        },
        {
          "ref": "1915, Journal of the Engineers' Society of Pennsylvania, volume 7:",
          "text": "[…]it is taken for granted that the discussions are not significant, otherwise we might consider the advisability of capturing these golden words by the installation of detectographs throughout the club house.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An early audio recording device used in wiretaps."
      ],
      "id": "en-detectograph-en-noun-Cx70F4V7",
      "links": [
        [
          "audio",
          "audio"
        ],
        [
          "record",
          "record"
        ],
        [
          "device",
          "device"
        ],
        [
          "wiretap",
          "wiretap"
        ]
      ]
    }
  ],
  "word": "detectograph"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "detect",
        "3": "-o-",
        "4": "-graph"
      },
      "expansion": "detect + -o- + -graph",
      "name": "affix"
    }
  ],
  "etymology_text": "From detect + -o- + -graph. Possibly originally a trademark.",
  "forms": [
    {
      "form": "detectographs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "detectograph (plural detectographs)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "ref": "1914, United States Congress, Congressional edition:",
          "text": "There were no stenographers and no detectographs in those days, and there is no record of this interview, fraught with such tremendous benefit to Germany and all Europe[…]",
          "type": "quote"
        },
        {
          "ref": "1915, Journal of the Engineers' Society of Pennsylvania, volume 7:",
          "text": "[…]it is taken for granted that the discussions are not significant, otherwise we might consider the advisability of capturing these golden words by the installation of detectographs throughout the club house.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An early audio recording device used in wiretaps."
      ],
      "links": [
        [
          "audio",
          "audio"
        ],
        [
          "record",
          "record"
        ],
        [
          "device",
          "device"
        ],
        [
          "wiretap",
          "wiretap"
        ]
      ]
    }
  ],
  "word": "detectograph"
}