"ferrous sulfate" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Iron(II) sulfate."
      ],
      "id": "en-ferrous_sulfate-en-noun-SOMhOw05",
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          "Iron(II) sulfate.",
          "iron(II) sulfate"
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        "(dated, inorganic chemistry) Iron(II) sulfate."
      ],
      "synonyms": [
        {
          "word": "copperas"
        },
        {
          "word": "iron(II) sulfate"
        },
        {
          "word": "ferrous sulphate"
        }
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      "wikipedia": [
        "Iron(II) sulfate"
      ]
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  "word": "ferrous sulfate"
}

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  "lang_code": "en",
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  "synonyms": [
    {
      "word": "copperas"
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    {
      "word": "iron(II) sulfate"
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    {
      "word": "ferrous sulphate"
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  "word": "ferrous sulfate"
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