"glass fiber" meaning in English

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      "expansion": "glass fiber",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "alt_of": [
        {
          "word": "glassfibre"
        }
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      "glosses": [
        "Alternative form of glassfibre"
      ],
      "id": "en-glass_fiber-en-noun-GEb5Gkr2",
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      "wikipedia": [
        "glass fiber"
      ]
    }
  ],
  "word": "glass fiber"
}

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      "expansion": "glass fiber",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "alt_of": [
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          "word": "glassfibre"
        }
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      "glosses": [
        "Alternative form of glassfibre"
      ],
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      "wikipedia": [
        "glass fiber"
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  "word": "glass fiber"
}