"perviousness" meaning in English

{
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        "1": "en",
        "2": "pervious",
        "3": "ness"
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      "expansion": "pervious + -ness",
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  ],
  "etymology_text": "From pervious + -ness.",
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      "expansion": "perviousness (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "antonyms": [
        {
          "word": "imperviousness"
        }
      ],
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          "kind": "other",
          "name": "English entries with incorrect language header",
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      "examples": [
        {
          "ref": "1673, Robert Boyle, “(please specify the title)”, in Essays of the Strange Subtilty, Great Efficacy, Determinate Nature of Effluviums. […], London: […] W[illiam] G[odbid] for M[oses] Pitt, […], →OCLC:",
          "text": "some Philosophers suppose in the pores of Glass, as 'tis a transparent body, or rather in their ranks or rows, may facilitate the Perviousness we above observ'd in Glass",
          "type": "quote"
        }
      ],
      "glosses": [
        "The quality or state of being pervious."
      ],
      "id": "en-perviousness-en-noun-2Qt6cT~2",
      "links": [
        [
          "pervious",
          "pervious"
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      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "perviousness"
}

{
  "etymology_templates": [
    {
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        "2": "pervious",
        "3": "ness"
      },
      "expansion": "pervious + -ness",
      "name": "suffix"
    }
  ],
  "etymology_text": "From pervious + -ness.",
  "head_templates": [
    {
      "args": {
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      },
      "expansion": "perviousness (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        {
          "word": "imperviousness"
        }
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      "examples": [
        {
          "ref": "1673, Robert Boyle, “(please specify the title)”, in Essays of the Strange Subtilty, Great Efficacy, Determinate Nature of Effluviums. […], London: […] W[illiam] G[odbid] for M[oses] Pitt, […], →OCLC:",
          "text": "some Philosophers suppose in the pores of Glass, as 'tis a transparent body, or rather in their ranks or rows, may facilitate the Perviousness we above observ'd in Glass",
          "type": "quote"
        }
      ],
      "glosses": [
        "The quality or state of being pervious."
      ],
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        [
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        "uncountable"
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  "word": "perviousness"
}