"polyurea" meaning in English

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      "expansion": "poly- + urea",
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  ],
  "etymology_text": "From poly- + urea.",
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    {
      "form": "polyureas",
      "tags": [
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Any of a class of polymeric elastomers whose repeat unit is a substituted urea"
      ],
      "id": "en-polyurea-en-noun-pA74Iemx",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "polymeric",
          "polymeric"
        ],
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          "elastomer",
          "elastomer"
        ],
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          "repeat unit",
          "repeat unit"
        ],
        [
          "urea",
          "urea"
        ]
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      "raw_glosses": [
        "(chemistry) Any of a class of polymeric elastomers whose repeat unit is a substituted urea"
      ],
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        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "polyurea"
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  "word": "polyurea"
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      "expansion": "poly- + urea",
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  ],
  "etymology_text": "From poly- + urea.",
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    {
      "form": "polyureas",
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        "Any of a class of polymeric elastomers whose repeat unit is a substituted urea"
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        "(chemistry) Any of a class of polymeric elastomers whose repeat unit is a substituted urea"
      ],
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        "chemistry",
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