"rolling mill" meaning in English

{
  "forms": [
    {
      "form": "rolling mills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rolling mill (plural rolling mills)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "81 19",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1944 November and December, A Former Pupil, “Some Memories of Crewe Works—II”, in Railway Magazine, page 341",
          "text": "Besides the usual run of machines, planers, millers, automatics, centre lathes, cranes, etc., there were several power stations, the rolling mills for strip material and for 60 ft. rails, and all the steel furnaces with their complicated systems of flues. If variety is the spice of life, then there was plenty here.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A machine for rolling metal into sheets."
      ],
      "id": "en-rolling_mill-en-noun-4GXONHia",
      "links": [
        [
          "machine",
          "machine"
        ]
      ]
    },
    {
      "glosses": [
        "A roller mill."
      ],
      "id": "en-rolling_mill-en-noun-zZHvsLMb",
      "links": [
        [
          "roller mill",
          "roller mill"
        ]
      ]
    }
  ],
  "word": "rolling mill"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns"
  ],
  "forms": [
    {
      "form": "rolling mills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rolling mill (plural rolling mills)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1944 November and December, A Former Pupil, “Some Memories of Crewe Works—II”, in Railway Magazine, page 341",
          "text": "Besides the usual run of machines, planers, millers, automatics, centre lathes, cranes, etc., there were several power stations, the rolling mills for strip material and for 60 ft. rails, and all the steel furnaces with their complicated systems of flues. If variety is the spice of life, then there was plenty here.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A machine for rolling metal into sheets."
      ],
      "links": [
        [
          "machine",
          "machine"
        ]
      ]
    },
    {
      "glosses": [
        "A roller mill."
      ],
      "links": [
        [
          "roller mill",
          "roller mill"
        ]
      ]
    }
  ],
  "word": "rolling mill"
}