"firetube" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fire",
        "3": "tube"
      },
      "expansion": "fire + tube",
      "name": "compound"
    }
  ],
  "etymology_text": "From fire + tube.",
  "forms": [
    {
      "form": "firetubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "firetube (plural firetubes)",
      "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"
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          "source": "w"
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          "kind": "other",
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          "parents": [],
          "source": "w"
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      ],
      "examples": [
        {
          "ref": "1959 September, P. Ransome-Wallis, “The British Railways Class \"9\" 2-10-0s”, in Trains Illustrated, page 420:",
          "text": "In a conventional boiler, the hot gases from the firebox, after passing through the firetubes, arrive in the smokebox and then pass up the chimney to atmosphere.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A tube conveying hot gas in a boiler."
      ],
      "id": "en-firetube-en-noun-Ks29tk9v",
      "links": [
        [
          "tube",
          "tube"
        ],
        [
          "convey",
          "convey"
        ],
        [
          "hot",
          "hot"
        ],
        [
          "gas",
          "gas"
        ],
        [
          "boiler",
          "boiler"
        ]
      ],
      "related": [
        {
          "word": "boiler tube"
        }
      ]
    }
  ],
  "word": "firetube"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fire",
        "3": "tube"
      },
      "expansion": "fire + tube",
      "name": "compound"
    }
  ],
  "etymology_text": "From fire + tube.",
  "forms": [
    {
      "form": "firetubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "firetube (plural firetubes)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "boiler tube"
    }
  ],
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
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      "examples": [
        {
          "ref": "1959 September, P. Ransome-Wallis, “The British Railways Class \"9\" 2-10-0s”, in Trains Illustrated, page 420:",
          "text": "In a conventional boiler, the hot gases from the firebox, after passing through the firetubes, arrive in the smokebox and then pass up the chimney to atmosphere.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A tube conveying hot gas in a boiler."
      ],
      "links": [
        [
          "tube",
          "tube"
        ],
        [
          "convey",
          "convey"
        ],
        [
          "hot",
          "hot"
        ],
        [
          "gas",
          "gas"
        ],
        [
          "boiler",
          "boiler"
        ]
      ]
    }
  ],
  "word": "firetube"
}