"longwall" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "long",
        "3": "wall"
      },
      "expansion": "long + wall",
      "name": "compound"
    }
  ],
  "etymology_text": "long + wall",
  "forms": [
    {
      "form": "longwalls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "longwall (plural longwalls)",
      "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": "Mining",
          "orig": "en:Mining",
          "parents": [
            "Industries",
            "Business",
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1960, Colliery Guardian Overseas, page 50",
          "text": "In addition to its work on longwall faces, the A.B. Fifteen has been adapted for shortwall work either as undercutter or as overcutter, particular care having been taken to give it increased manoauvrability by the provision of special pulleys, and increased mobility by the addition of a tilting underframe.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A long wall of coal that is mined in a single slice."
      ],
      "id": "en-longwall-en-noun-yIMC180H",
      "links": [
        [
          "mining",
          "mining#Noun"
        ],
        [
          "coal",
          "coal"
        ],
        [
          "mine",
          "mine"
        ],
        [
          "slice",
          "slice"
        ]
      ],
      "raw_glosses": [
        "(mining) A long wall of coal that is mined in a single slice."
      ],
      "topics": [
        "business",
        "mining"
      ],
      "wikipedia": [
        "Longwall mining"
      ]
    }
  ],
  "word": "longwall"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "long",
        "3": "wall"
      },
      "expansion": "long + wall",
      "name": "compound"
    }
  ],
  "etymology_text": "long + wall",
  "forms": [
    {
      "form": "longwalls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "longwall (plural longwalls)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "en:Mining"
      ],
      "examples": [
        {
          "ref": "1960, Colliery Guardian Overseas, page 50",
          "text": "In addition to its work on longwall faces, the A.B. Fifteen has been adapted for shortwall work either as undercutter or as overcutter, particular care having been taken to give it increased manoauvrability by the provision of special pulleys, and increased mobility by the addition of a tilting underframe.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A long wall of coal that is mined in a single slice."
      ],
      "links": [
        [
          "mining",
          "mining#Noun"
        ],
        [
          "coal",
          "coal"
        ],
        [
          "mine",
          "mine"
        ],
        [
          "slice",
          "slice"
        ]
      ],
      "raw_glosses": [
        "(mining) A long wall of coal that is mined in a single slice."
      ],
      "topics": [
        "business",
        "mining"
      ],
      "wikipedia": [
        "Longwall mining"
      ]
    }
  ],
  "word": "longwall"
}