"tetraethyllead" meaning in English

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      "expansion": "tetraethyl + lead",
      "name": "compound"
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  ],
  "etymology_text": "From tetraethyl + lead.",
  "forms": [
    {
      "form": "tetraethylleads",
      "tags": [
        "plural"
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    }
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      "expansion": "tetraethyllead (usually uncountable, plural tetraethylleads)",
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  "lang_code": "en",
  "pos": "noun",
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        {
          "word": "tetraethyl lead"
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        "Alternative spelling of tetraethyl lead"
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        "(organic chemistry) Alternative spelling of tetraethyl lead"
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  "word": "tetraethyllead"
}

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        "2": "tetraethyl",
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      "expansion": "tetraethyl + lead",
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  ],
  "etymology_text": "From tetraethyl + lead.",
  "forms": [
    {
      "form": "tetraethylleads",
      "tags": [
        "plural"
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    }
  ],
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  "lang_code": "en",
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        "(organic chemistry) Alternative spelling of tetraethyl lead"
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  "word": "tetraethyllead"
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