"troy pound" meaning in English

{
  "forms": [
    {
      "form": "troy pounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "troy pound (plural troy pounds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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      ],
      "glosses": [
        "A unit of weight, rarely used except in the trade of precious metals, equal to 5760 troy grains, 12 troy ounces, or 373.2417 grams."
      ],
      "id": "en-troy_pound-en-noun-oxd7tvCg",
      "links": [
        [
          "unit",
          "unit"
        ],
        [
          "weight",
          "weight"
        ],
        [
          "precious metal",
          "precious metal"
        ],
        [
          "troy grain",
          "troy grain"
        ],
        [
          "troy ounces",
          "troy ounce"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "unit",
          "word": "troy-naula"
        }
      ]
    }
  ],
  "word": "troy pound"
}

{
  "forms": [
    {
      "form": "troy pounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "troy pound (plural troy pounds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
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        "English multiword terms",
        "English nouns",
        "English terms derived from toponyms",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations"
      ],
      "glosses": [
        "A unit of weight, rarely used except in the trade of precious metals, equal to 5760 troy grains, 12 troy ounces, or 373.2417 grams."
      ],
      "links": [
        [
          "unit",
          "unit"
        ],
        [
          "weight",
          "weight"
        ],
        [
          "precious metal",
          "precious metal"
        ],
        [
          "troy grain",
          "troy grain"
        ],
        [
          "troy ounces",
          "troy ounce"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "unit",
      "word": "troy-naula"
    }
  ],
  "word": "troy pound"
}