"vestibule train" meaning in English

{
  "forms": [
    {
      "form": "vestibule trains",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vestibule train (plural vestibule trains)",
      "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"
        }
      ],
      "glosses": [
        "A train of passenger cars having the space between the end doors of adjacent cars enclosed, so as to allow the doors to be left open to provide for intercommunication between all the cars."
      ],
      "id": "en-vestibule_train-en-noun-OqDO5jvi",
      "links": [
        [
          "train",
          "train"
        ],
        [
          "passenger car",
          "passenger car"
        ],
        [
          "adjacent",
          "adjacent"
        ],
        [
          "enclosed",
          "enclosed"
        ],
        [
          "intercommunication",
          "intercommunication"
        ]
      ],
      "raw_glosses": [
        "(railways) A train of passenger cars having the space between the end doors of adjacent cars enclosed, so as to allow the doors to be left open to provide for intercommunication between all the cars."
      ],
      "topics": [
        "railways",
        "transport"
      ]
    }
  ],
  "word": "vestibule train"
}

{
  "forms": [
    {
      "form": "vestibule trains",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vestibule train (plural vestibule trains)",
      "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"
      ],
      "glosses": [
        "A train of passenger cars having the space between the end doors of adjacent cars enclosed, so as to allow the doors to be left open to provide for intercommunication between all the cars."
      ],
      "links": [
        [
          "train",
          "train"
        ],
        [
          "passenger car",
          "passenger car"
        ],
        [
          "adjacent",
          "adjacent"
        ],
        [
          "enclosed",
          "enclosed"
        ],
        [
          "intercommunication",
          "intercommunication"
        ]
      ],
      "raw_glosses": [
        "(railways) A train of passenger cars having the space between the end doors of adjacent cars enclosed, so as to allow the doors to be left open to provide for intercommunication between all the cars."
      ],
      "topics": [
        "railways",
        "transport"
      ]
    }
  ],
  "word": "vestibule train"
}