"heat conductivity" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "thermal conductivity"
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          "thermal conductivity",
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      "tags": [
        "countable",
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  "word": "heat conductivity"
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  "lang_code": "en",
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      "glosses": [
        "thermal conductivity"
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      "tags": [
        "countable",
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  "word": "heat conductivity"
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