"Bessemer iron" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Iron",
          "orig": "en:Iron",
          "parents": [
            "Transition metals",
            "Chemical elements",
            "Metals",
            "Matter",
            "Metallurgy",
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            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
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      ],
      "glosses": [
        "pig iron suitable for making Bessemer steel"
      ],
      "id": "en-Bessemer_iron-en-noun-rWrwQTYS",
      "links": [
        [
          "pig iron",
          "pig iron"
        ],
        [
          "Bessemer steel",
          "Bessemer steel"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "Bessemer iron"
}

{
  "forms": [
    {
      "form": "Bessemer irons",
      "tags": [
        "plural"
      ]
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  ],
  "head_templates": [
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "pig iron suitable for making Bessemer steel"
      ],
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          "pig iron",
          "pig iron"
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          "Bessemer steel",
          "Bessemer steel"
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  "word": "Bessemer iron"
}