"ferrate" meaning in English

{
  "forms": [
    {
      "form": "ferrates",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ferrate (plural ferrates)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "name": "Pages with 5 entries",
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          "source": "w"
        },
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Inorganic chemistry",
          "orig": "en:Inorganic chemistry",
          "parents": [
            "Chemistry",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Iron",
          "orig": "en:Iron",
          "parents": [
            "Transition metals",
            "Chemical elements",
            "Metals",
            "Matter",
            "Metallurgy",
            "Chemistry",
            "Nature",
            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "potassium ferrate"
        }
      ],
      "glosses": [
        "The anion FeO₄²⁻ in which iron is in a +6 formal oxidation state."
      ],
      "id": "en-ferrate-en-noun-0yCq2uzs",
      "links": [
        [
          "inorganic chemistry",
          "inorganic chemistry"
        ],
        [
          "anion",
          "anion"
        ],
        [
          "oxidation state",
          "oxidation state"
        ]
      ],
      "raw_glosses": [
        "(inorganic chemistry) The anion FeO₄²⁻ in which iron is in a +6 formal oxidation state."
      ],
      "related": [
        {
          "word": "ferric acid"
        }
      ],
      "topics": [
        "chemistry",
        "inorganic-chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "ferrate"
}

{
  "derived": [
    {
      "word": "potassium ferrate"
    }
  ],
  "forms": [
    {
      "form": "ferrates",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ferrate (plural ferrates)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "ferric acid"
    }
  ],
  "senses": [
    {
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        "English countable nouns",
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        "en:Inorganic chemistry",
        "en:Iron"
      ],
      "glosses": [
        "The anion FeO₄²⁻ in which iron is in a +6 formal oxidation state."
      ],
      "links": [
        [
          "inorganic chemistry",
          "inorganic chemistry"
        ],
        [
          "anion",
          "anion"
        ],
        [
          "oxidation state",
          "oxidation state"
        ]
      ],
      "raw_glosses": [
        "(inorganic chemistry) The anion FeO₄²⁻ in which iron is in a +6 formal oxidation state."
      ],
      "topics": [
        "chemistry",
        "inorganic-chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "ferrate"
}