"rusting" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
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          "word": "rust"
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        "present participle and gerund of rust"
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  "sounds": [
    {
      "rhymes": "-ʌstɪŋ"
    }
  ],
  "word": "rusting"
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{
  "forms": [
    {
      "form": "rustings",
      "tags": [
        "plural"
      ]
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  ],
  "head_templates": [
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      "expansion": "rusting (plural rustings)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1899, Scientific American, volume 81, page 309:",
          "text": "An example will best make the matter clear, and throw light, perhaps, on many cases of apparently mysterious rustings.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The development of rust on a surface."
      ],
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      "rhymes": "-ʌstɪŋ"
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  "word": "rusting"
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
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  "sounds": [
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  "word": "rusting"
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  "lang_code": "en",
  "pos": "noun",
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          "text": "An example will best make the matter clear, and throw light, perhaps, on many cases of apparently mysterious rustings.",
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      ],
      "glosses": [
        "The development of rust on a surface."
      ],
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  "sounds": [
    {
      "rhymes": "-ʌstɪŋ"
    }
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  "word": "rusting"
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