"red mercury" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Conspiracy theories",
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            "Fundamental"
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          "name": "Fictional materials",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nuclear warfare",
          "orig": "en:Nuclear warfare",
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          "name": "Pseudoscience",
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            "Fundamental"
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      ],
      "glosses": [
        "A supposed substance for use in the creation of nuclear bombs and other weapons, about which there are various conspiracy theories."
      ],
      "id": "en-red_mercury-en-noun-fbQBadpt",
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          "nuclear bomb",
          "nuclear bomb"
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        [
          "weapon",
          "weapon"
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        [
          "conspiracy theories",
          "conspiracy theory"
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      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "red mercury"
      ]
    }
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  "word": "red mercury"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Conspiracy theories",
        "en:Fictional materials",
        "en:Nuclear warfare",
        "en:Pseudoscience"
      ],
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        "A supposed substance for use in the creation of nuclear bombs and other weapons, about which there are various conspiracy theories."
      ],
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          "nuclear bomb",
          "nuclear bomb"
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        "red mercury"
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  "word": "red mercury"
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