"prussiate" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
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      ],
      "derived": [
        {
          "word": "ferroprussiate"
        },
        {
          "word": "yellow prussiate of soda"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              72,
              82
            ]
          ],
          "ref": "1867, Edmund Ronalds, Thomas Richardson, Chemical Technology, page 696:",
          "text": "The new fulminate consists of a mixture of chlorate of potash, with the prussiates, soluble or unsoluble, the hyposulphites, the hypophosphites, the phosphides, the amorphous phosphorus, alone or combined.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A ferricyanide, ferrocyanide or cyanide."
      ],
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          "chemistry",
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        [
          "ferricyanide",
          "ferricyanide"
        ],
        [
          "ferrocyanide",
          "ferrocyanide"
        ],
        [
          "cyanide",
          "cyanide"
        ]
      ],
      "raw_glosses": [
        "(chemistry, obsolete) A ferricyanide, ferrocyanide or cyanide."
      ],
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        "obsolete"
      ],
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        "chemistry",
        "natural-sciences",
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  "word": "prussiate"
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    {
      "word": "ferroprussiate"
    },
    {
      "word": "yellow prussiate of soda"
    }
  ],
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          "ref": "1867, Edmund Ronalds, Thomas Richardson, Chemical Technology, page 696:",
          "text": "The new fulminate consists of a mixture of chlorate of potash, with the prussiates, soluble or unsoluble, the hyposulphites, the hypophosphites, the phosphides, the amorphous phosphorus, alone or combined.",
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        }
      ],
      "glosses": [
        "A ferricyanide, ferrocyanide or cyanide."
      ],
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        [
          "chemistry",
          "chemistry"
        ],
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          "ferricyanide",
          "ferricyanide"
        ],
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          "ferrocyanide",
          "ferrocyanide"
        ],
        [
          "cyanide",
          "cyanide"
        ]
      ],
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        "(chemistry, obsolete) A ferricyanide, ferrocyanide or cyanide."
      ],
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        "obsolete"
      ],
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        "chemistry",
        "natural-sciences",
        "physical-sciences"
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