"ЭКГ" meaning in Russian

{
  "forms": [
    {
      "form": "EKG",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ЭКГ",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "ЭКГ • (EKG) f inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(elektrokardiográmma): (cardiology) electrocardiogram",
          "word": "электрокардиогра́мма"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ru",
          "name": "Cardiology",
          "orig": "ru:Cardiology",
          "parents": [
            "Medicine",
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "abbreviation of электрокардиогра́мма (elektrokardiográmma): (cardiology) electrocardiogram"
      ],
      "id": "en-ЭКГ-ru-noun-pQIwl4iq",
      "links": [
        [
          "электрокардиогра́мма",
          "электрокардиограмма#Russian"
        ],
        [
          "cardiology",
          "cardiology"
        ],
        [
          "electrocardiogram",
          "electrocardiogram"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ]
    }
  ],
  "word": "ЭКГ"
}

{
  "forms": [
    {
      "form": "EKG",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ЭКГ",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "ЭКГ • (EKG) f inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(elektrokardiográmma): (cardiology) electrocardiogram",
          "word": "электрокардиогра́мма"
        }
      ],
      "categories": [
        "Russian abbreviations",
        "Russian entries with incorrect language header",
        "Russian feminine nouns",
        "Russian inanimate nouns",
        "Russian indeclinable nouns",
        "Russian lemmas",
        "Russian nouns",
        "Russian terms with redundant head parameter",
        "ru:Cardiology"
      ],
      "glosses": [
        "abbreviation of электрокардиогра́мма (elektrokardiográmma): (cardiology) electrocardiogram"
      ],
      "links": [
        [
          "электрокардиогра́мма",
          "электрокардиограмма#Russian"
        ],
        [
          "cardiology",
          "cardiology"
        ],
        [
          "electrocardiogram",
          "electrocardiogram"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ]
    }
  ],
  "word": "ЭКГ"
}