"Mg" meaning in Translingual

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  "lang_code": "mul",
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          "orig": "mul:Alkaline earth metals",
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      ],
      "glosses": [
        "Chemical symbol for magnesium."
      ],
      "id": "en-Mg-mul-symbol-Y-w-7xyK",
      "links": [
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          "chemistry",
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        [
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          "magnesium#English"
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      "raw_glosses": [
        "(chemistry) Chemical symbol for magnesium."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    },
    {
      "alt_of": [
        {
          "extra": "an SI unit of mass equal to 10⁶ grams",
          "word": "megagram"
        }
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          "orig": "mul:Metrology",
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          "name": "Alkaline earth metals",
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          "parents": [],
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        }
      ],
      "glosses": [
        "Symbol for megagram, an SI unit of mass equal to 10⁶ grams."
      ],
      "id": "en-Mg-mul-symbol-TOBtZgNL",
      "links": [
        [
          "metrology",
          "metrology"
        ],
        [
          "megagram",
          "megagram"
        ],
        [
          "mass",
          "mass"
        ],
        [
          "gram",
          "gram"
        ]
      ],
      "raw_glosses": [
        "(metrology) Symbol for megagram, an SI unit of mass equal to 10⁶ grams."
      ],
      "tags": [
        "alt-of",
        "symbol"
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "Mg"
}

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    "Translingual symbols",
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        "Chemical symbol for magnesium."
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        "(chemistry) Chemical symbol for magnesium."
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        "natural-sciences",
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    },
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      "alt_of": [
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          "extra": "an SI unit of mass equal to 10⁶ grams",
          "word": "megagram"
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        "Symbol for megagram, an SI unit of mass equal to 10⁶ grams."
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      ],
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        "metrology"
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  "word": "Mg"
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