"firestone" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fire",
        "3": "stone"
      },
      "expansion": "fire + stone",
      "name": "compound"
    }
  ],
  "etymology_text": "fire + stone",
  "forms": [
    {
      "form": "firestones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "firestone (countable and uncountable, plural firestones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "81 4 15",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Iron pyrite, formerly used for striking fire."
      ],
      "id": "en-firestone-en-noun-TkU1jXXh",
      "links": [
        [
          "Iron",
          "iron"
        ],
        [
          "pyrite",
          "pyrite"
        ],
        [
          "fire",
          "fire"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "glosses": [
        "A flint."
      ],
      "id": "en-firestone-en-noun-AQcoUD23",
      "links": [
        [
          "flint",
          "flint"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "ref": "1961 February, D. Bertram, “The lines to Wetherby and their traffic”, in Trains Illustrated, page 101",
          "text": "On the descent the line is often in cuttings; some are high, such as at Scarcroft, where a cut through firestone and fireclay was necessary, and near Bardsey, where the line threads a deep tree-lined gorge.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A stone which will bear the heat of a furnace without injury; especially applied to the sandstone at the top of the upper greensand in the south of England, used for lining kilns and furnaces."
      ],
      "id": "en-firestone-en-noun-en:kiln_furnace",
      "links": [
        [
          "stone",
          "stone"
        ],
        [
          "furnace",
          "furnace"
        ],
        [
          "sandstone",
          "sandstone"
        ],
        [
          "greensand",
          "greensand"
        ],
        [
          "England",
          "England"
        ],
        [
          "kiln",
          "kiln"
        ]
      ],
      "senseid": [
        "en:kiln-furnace"
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "firestone"
}

{
  "categories": [
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English uncountable nouns"
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  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fire",
        "3": "stone"
      },
      "expansion": "fire + stone",
      "name": "compound"
    }
  ],
  "etymology_text": "fire + stone",
  "forms": [
    {
      "form": "firestones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "firestone (countable and uncountable, plural firestones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Iron pyrite, formerly used for striking fire."
      ],
      "links": [
        [
          "Iron",
          "iron"
        ],
        [
          "pyrite",
          "pyrite"
        ],
        [
          "fire",
          "fire"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "glosses": [
        "A flint."
      ],
      "links": [
        [
          "flint",
          "flint"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1961 February, D. Bertram, “The lines to Wetherby and their traffic”, in Trains Illustrated, page 101",
          "text": "On the descent the line is often in cuttings; some are high, such as at Scarcroft, where a cut through firestone and fireclay was necessary, and near Bardsey, where the line threads a deep tree-lined gorge.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A stone which will bear the heat of a furnace without injury; especially applied to the sandstone at the top of the upper greensand in the south of England, used for lining kilns and furnaces."
      ],
      "links": [
        [
          "stone",
          "stone"
        ],
        [
          "furnace",
          "furnace"
        ],
        [
          "sandstone",
          "sandstone"
        ],
        [
          "greensand",
          "greensand"
        ],
        [
          "England",
          "England"
        ],
        [
          "kiln",
          "kiln"
        ]
      ],
      "senseid": [
        "en:kiln-furnace"
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "firestone"
}