"dead section" meaning in English

{
  "forms": [
    {
      "form": "dead sections",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dead section (plural dead sections)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Electrical engineering",
          "orig": "en:Electrical engineering",
          "parents": [
            "Electricity",
            "Engineering",
            "Electromagnetism",
            "Applied sciences",
            "Technology",
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1962 March, “Talking of Trains: The future of B.R. a.c. traction”, in Modern Railways, page 148",
          "text": "A new glass fibre insulating section will ultimately equip all neutral sections, simplifying maintenance work and greatly reducing the length of dead sections.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Part of a neutral section."
      ],
      "id": "en-dead_section-en-noun-c14XB1cn",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "electrical engineering",
          "electrical engineering"
        ],
        [
          "neutral section",
          "neutral section#English"
        ]
      ],
      "raw_glosses": [
        "(rail transport, electrical engineering) Part of a neutral section."
      ],
      "topics": [
        "business",
        "electrical",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics",
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "dead section"
}

{
  "forms": [
    {
      "form": "dead sections",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dead section (plural dead sections)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "en:Electrical engineering",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "ref": "1962 March, “Talking of Trains: The future of B.R. a.c. traction”, in Modern Railways, page 148",
          "text": "A new glass fibre insulating section will ultimately equip all neutral sections, simplifying maintenance work and greatly reducing the length of dead sections.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Part of a neutral section."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "electrical engineering",
          "electrical engineering"
        ],
        [
          "neutral section",
          "neutral section#English"
        ]
      ],
      "raw_glosses": [
        "(rail transport, electrical engineering) Part of a neutral section."
      ],
      "topics": [
        "business",
        "electrical",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics",
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "dead section"
}