"capnograph" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "capno",
        "3": "graph"
      },
      "expansion": "capno- + -graph",
      "name": "confix"
    }
  ],
  "etymology_text": "From capno- + -graph.",
  "forms": [
    {
      "form": "capnographs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "capnograph (plural capnographs)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with capno-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -graph",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
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          "source": "w"
        }
      ],
      "glosses": [
        "An instrument that measures the amount of carbon dioxide in a gas (especially expired breath) and displays it continuously"
      ],
      "id": "en-capnograph-en-noun-TbImWguO",
      "links": [
        [
          "carbon dioxide",
          "carbon dioxide"
        ],
        [
          "gas",
          "gas"
        ],
        [
          "breath",
          "breath"
        ]
      ],
      "related": [
        {
          "word": "capnogram"
        },
        {
          "word": "capnography"
        },
        {
          "word": "microcapnograph"
        }
      ]
    }
  ],
  "word": "capnograph"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "capno",
        "3": "graph"
      },
      "expansion": "capno- + -graph",
      "name": "confix"
    }
  ],
  "etymology_text": "From capno- + -graph.",
  "forms": [
    {
      "form": "capnographs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "capnograph (plural capnographs)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "capnogram"
    },
    {
      "word": "capnography"
    },
    {
      "word": "microcapnograph"
    }
  ],
  "senses": [
    {
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        "English countable nouns",
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      ],
      "glosses": [
        "An instrument that measures the amount of carbon dioxide in a gas (especially expired breath) and displays it continuously"
      ],
      "links": [
        [
          "carbon dioxide",
          "carbon dioxide"
        ],
        [
          "gas",
          "gas"
        ],
        [
          "breath",
          "breath"
        ]
      ]
    }
  ],
  "word": "capnograph"
}