"гц" meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "герц"
      },
      "expansion": "Abbreviation of герц (gerc)",
      "name": "abbrev"
    }
  ],
  "etymology_text": "Abbreviation of герц (gerc).",
  "forms": [
    {
      "form": "gc",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "m-in",
        "3": "-"
      },
      "expansion": "гц • (gc) m inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "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": "Units of measure",
          "orig": "ru:Units of measure",
          "parents": [
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Hz, hertz"
      ],
      "id": "en-гц-ru-noun-hvf1y5O6",
      "links": [
        [
          "Hz",
          "Hz"
        ],
        [
          "hertz",
          "hertz"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɡʲert͡s]"
    }
  ],
  "word": "гц"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "герц"
      },
      "expansion": "Abbreviation of герц (gerc)",
      "name": "abbrev"
    }
  ],
  "etymology_text": "Abbreviation of герц (gerc).",
  "forms": [
    {
      "form": "gc",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "m-in",
        "3": "-"
      },
      "expansion": "гц • (gc) m inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Russian 1-syllable words",
        "Russian abbreviations",
        "Russian entries with incorrect language header",
        "Russian inanimate nouns",
        "Russian indeclinable nouns",
        "Russian lemmas",
        "Russian masculine nouns",
        "Russian nouns",
        "Russian terms with IPA pronunciation",
        "Russian terms with redundant head parameter",
        "ru:Units of measure"
      ],
      "glosses": [
        "Hz, hertz"
      ],
      "links": [
        [
          "Hz",
          "Hz"
        ],
        [
          "hertz",
          "hertz"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɡʲert͡s]"
    }
  ],
  "word": "гц"
}