"transmittivity" meaning in English

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  "lang_code": "en",
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      "examples": [
        {
          "ref": "2015, David Luong, Liang Jiang, Jungsang Kim, Norbert Lütkenhaus, “Overcoming lossy channel bounds using a single quantum repeater node”, in arXiv:",
          "text": "Ideally, its secret key rate scales as the square root of the transmittivity of the optical channel, which is superior to QKD schemes based on direct transmission because key rates for the latter scale at best linearly with transmittivity.",
          "type": "quote"
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      ],
      "glosses": [
        "A measure of transmittance."
      ],
      "id": "en-transmittivity-en-noun-BxeWIyf8",
      "links": [
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        [
          "transmittance",
          "transmittance"
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      ],
      "raw_glosses": [
        "(physics) A measure of transmittance."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
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  ],
  "word": "transmittivity"
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      ],
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        "A measure of transmittance."
      ],
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          "transmittance",
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        "(physics) A measure of transmittance."
      ],
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  "word": "transmittivity"
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