"cold welding" meaning in English

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  "etymology_text": "From cold + welding.\nFrom being a form of welding not requiring adding heat.",
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  "lang_code": "en",
  "pos": "noun",
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        {
          "english": "heat welding by molten temperatures",
          "word": "fusion welding"
        }
      ],
      "glosses": [
        "A phenomenon where in a vacuum, two clean oxide-less uncoated metal surfaces will fuse/weld/merge together when they come into contact with each other, without any other action required (without fusion heating)."
      ],
      "id": "en-cold_welding-en-noun-svVtp9Za",
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        [
          "vacuum",
          "vacuum"
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          "metal",
          "metal"
        ]
      ],
      "related": [
        {
          "word": "cold shut"
        }
      ],
      "synonyms": [
        {
          "word": "contact welding"
        }
      ],
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        "uncountable"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "type of welding",
          "word": "kylmähitsaus"
        }
      ]
    }
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    "en:cold welding"
  ],
  "word": "cold welding"
}

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        "2": "cold weld",
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      "expansion": "cold weld + -ing",
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  ],
  "etymology_text": "From cold weld + -ing.",
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  "pos": "verb",
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          "word": "cold weld"
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        "present participle and gerund of cold weld"
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          "cold weld",
          "cold weld#English"
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  "word": "cold welding"
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      "english": "heat welding by molten temperatures",
      "word": "fusion welding"
    }
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  "etymology_text": "From cold + welding.\nFrom being a form of welding not requiring adding heat.",
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  "lang_code": "en",
  "pos": "noun",
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    {
      "word": "cold shut"
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  "senses": [
    {
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        "A phenomenon where in a vacuum, two clean oxide-less uncoated metal surfaces will fuse/weld/merge together when they come into contact with each other, without any other action required (without fusion heating)."
      ],
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          "vacuum",
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      "word": "contact welding"
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      "code": "fi",
      "lang": "Finnish",
      "sense": "type of welding",
      "word": "kylmähitsaus"
    }
  ],
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  ],
  "word": "cold welding"
}

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        "present participle and gerund of cold weld"
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          "cold weld",
          "cold weld#English"
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  "word": "cold welding"
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