"Rg" meaning in Translingual

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      "expansion": "Rg",
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  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
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          "name": "Pages with 1 entry",
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      ],
      "glosses": [
        "Chemical symbol for roentgenium."
      ],
      "id": "en-Rg-mul-symbol-UzNQfvld",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "roentgenium",
          "roentgenium#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) Chemical symbol for roentgenium."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "Rg"
}

{
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      "expansion": "Rg",
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  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
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        "Pages with 1 entry",
        "Pages with entries",
        "Symbols for chemical elements",
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual symbols"
      ],
      "glosses": [
        "Chemical symbol for roentgenium."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "roentgenium",
          "roentgenium#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) Chemical symbol for roentgenium."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "Rg"
}