"waterproofer" meaning in English

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  "etymology_text": "From waterproof + -er.",
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    {
      "form": "waterproofers",
      "tags": [
        "plural"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1985, The Architects' Journal, volume 181, page 65:",
          "text": "It must not contain waterproofers, integral hardeners, plasticisers, accelerators or other additives because these act as delaminators for resins.",
          "type": "quote"
        }
      ],
      "glosses": [
        "One who, or that which, makes waterproof."
      ],
      "id": "en-waterproofer-en-noun-RsTxvBZy",
      "links": [
        [
          "waterproof",
          "waterproof"
        ]
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  "word": "waterproofer"
}

{
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    {
      "args": {
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        "2": "waterproof",
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      "expansion": "waterproof + -er",
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    }
  ],
  "etymology_text": "From waterproof + -er.",
  "forms": [
    {
      "form": "waterproofers",
      "tags": [
        "plural"
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      "expansion": "waterproofer (plural waterproofers)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1985, The Architects' Journal, volume 181, page 65:",
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        }
      ],
      "glosses": [
        "One who, or that which, makes waterproof."
      ],
      "links": [
        [
          "waterproof",
          "waterproof"
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  "word": "waterproofer"
}