"rotten stone" meaning in English

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      "expansion": "rotten stone",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "word": "rottenstone"
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      "glosses": [
        "Alternative form of rottenstone"
      ],
      "id": "en-rotten_stone-en-noun-r1oMoaXN",
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  "word": "rotten stone"
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      "expansion": "rotten stone",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "word": "rottenstone"
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      "glosses": [
        "Alternative form of rottenstone"
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  "word": "rotten stone"
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