"pitchstone" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pitch",
        "3": "stone"
      },
      "expansion": "pitch + stone",
      "name": "compound"
    }
  ],
  "etymology_text": "From pitch + stone.",
  "forms": [
    {
      "form": "pitchstones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "pitchstone (usually uncountable, plural pitchstones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w"
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        {
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geology",
          "orig": "en:Geology",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rocks",
          "orig": "en:Rocks",
          "parents": [
            "Geology",
            "Natural materials",
            "Earth sciences",
            "Materials",
            "Nature",
            "Sciences",
            "Manufacturing",
            "All topics",
            "Human activity",
            "Fundamental",
            "Human behaviour",
            "Human"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a natural glass, rich in microscopic crystallites, formed by the rapid cooling of lava or magma"
      ],
      "id": "en-pitchstone-en-noun-qOGRCiGR",
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "glass",
          "glass"
        ],
        [
          "microscopic",
          "microscopic"
        ],
        [
          "crystallite",
          "crystallite"
        ],
        [
          "lava",
          "lava"
        ],
        [
          "magma",
          "magma"
        ]
      ],
      "raw_glosses": [
        "(geology) a natural glass, rich in microscopic crystallites, formed by the rapid cooling of lava or magma"
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "sōngzhīyán",
          "sense": "natural glass",
          "word": "松脂岩"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "natural glass",
          "word": "laavalasi"
        },
        {
          "alt": "しょうしがん",
          "code": "ja",
          "lang": "Japanese",
          "roman": "shōshigan",
          "sense": "natural glass",
          "word": "松脂岩"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "natural glass",
          "tags": [
            "masculine"
          ],
          "word": "smołowiec"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "smoljanoj kamenʹ",
          "sense": "natural glass",
          "word": "смоляной камень"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "natural glass",
          "tags": [
            "common-gender"
          ],
          "word": "pechsten"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "natural glass",
          "tags": [
            "common-gender"
          ],
          "word": "becksten"
        }
      ]
    }
  ],
  "word": "pitchstone"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pitch",
        "3": "stone"
      },
      "expansion": "pitch + stone",
      "name": "compound"
    }
  ],
  "etymology_text": "From pitch + stone.",
  "forms": [
    {
      "form": "pitchstones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
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      "expansion": "pitchstone (usually uncountable, plural pitchstones)",
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    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
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        "Terms with Russian translations",
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        "en:Geology",
        "en:Rocks"
      ],
      "glosses": [
        "a natural glass, rich in microscopic crystallites, formed by the rapid cooling of lava or magma"
      ],
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        [
          "geology",
          "geology"
        ],
        [
          "glass",
          "glass"
        ],
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          "microscopic",
          "microscopic"
        ],
        [
          "crystallite",
          "crystallite"
        ],
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          "lava",
          "lava"
        ],
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          "magma",
          "magma"
        ]
      ],
      "raw_glosses": [
        "(geology) a natural glass, rich in microscopic crystallites, formed by the rapid cooling of lava or magma"
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "sōngzhīyán",
      "sense": "natural glass",
      "word": "松脂岩"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "natural glass",
      "word": "laavalasi"
    },
    {
      "alt": "しょうしがん",
      "code": "ja",
      "lang": "Japanese",
      "roman": "shōshigan",
      "sense": "natural glass",
      "word": "松脂岩"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "natural glass",
      "tags": [
        "masculine"
      ],
      "word": "smołowiec"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "smoljanoj kamenʹ",
      "sense": "natural glass",
      "word": "смоляной камень"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "natural glass",
      "tags": [
        "common-gender"
      ],
      "word": "pechsten"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "natural glass",
      "tags": [
        "common-gender"
      ],
      "word": "becksten"
    }
  ],
  "word": "pitchstone"
}