"topological insulator" meaning in English

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    {
      "form": "topological insulators",
      "tags": [
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      "expansion": "topological insulator (plural topological insulators)",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "a material which conducts electrons only along its edges and surfaces, but does not conduct in its interior"
      ],
      "id": "en-topological_insulator-en-noun-vay433-Y",
      "links": [
        [
          "material",
          "material"
        ],
        [
          "conduct",
          "conduct"
        ],
        [
          "electron",
          "electron"
        ]
      ],
      "related": [
        {
          "english": "topological insulator",
          "word": "stanene"
        },
        {
          "alt": "HgTe",
          "english": "topological insulator",
          "word": "mercury telluride"
        },
        {
          "word": "Hall effect"
        }
      ]
    }
  ],
  "word": "topological insulator"
}

{
  "forms": [
    {
      "form": "topological insulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "expansion": "topological insulator (plural topological insulators)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "english": "topological insulator",
      "word": "stanene"
    },
    {
      "alt": "HgTe",
      "english": "topological insulator",
      "word": "mercury telluride"
    },
    {
      "word": "Hall effect"
    }
  ],
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      "glosses": [
        "a material which conducts electrons only along its edges and surfaces, but does not conduct in its interior"
      ],
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        [
          "conduct",
          "conduct"
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        [
          "electron",
          "electron"
        ]
      ]
    }
  ],
  "word": "topological insulator"
}