"Mc" meaning in 跨语言

{
  "categories": [
    {
      "kind": "other",
      "name": "派生自俄語的跨語言詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言符號",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言縮寫",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_text": "moscovium之縮寫。 源自俄語 Москва́ (Moskvá, “莫斯科”)。",
  "lang": "跨语言",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "鏌的符號"
      ],
      "id": "zh-Mc-mul-symbol-OYAmRtal",
      "topics": [
        "chemistry"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Uup"
    }
  ],
  "word": "Mc"
}

{
  "categories": [
    "派生自俄語的跨語言詞",
    "跨語言符號",
    "跨語言縮寫",
    "跨語言詞元"
  ],
  "etymology_text": "moscovium之縮寫。 源自俄語 Москва́ (Moskvá, “莫斯科”)。",
  "lang": "跨语言",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "鏌的符號"
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Uup"
    }
  ],
  "word": "Mc"
}