"smoke tower" meaning in English

{
  "forms": [
    {
      "form": "smoke towers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "smoke tower (plural smoke towers)",
      "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": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "In a high building, a stairway protected by several inches of concrete and entered through a kind of \"air lock\" that prevents the poluted smoke to enter inside it."
      ],
      "id": "en-smoke_tower-en-noun-FaVTkWZO",
      "links": [
        [
          "stairway",
          "stairway"
        ],
        [
          "concrete",
          "concrete"
        ]
      ],
      "synonyms": [
        {
          "word": "fire tower stairway"
        }
      ]
    }
  ],
  "word": "smoke tower"
}

{
  "forms": [
    {
      "form": "smoke towers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "smoke tower (plural smoke towers)",
      "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",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "In a high building, a stairway protected by several inches of concrete and entered through a kind of \"air lock\" that prevents the poluted smoke to enter inside it."
      ],
      "links": [
        [
          "stairway",
          "stairway"
        ],
        [
          "concrete",
          "concrete"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "fire tower stairway"
    }
  ],
  "word": "smoke tower"
}