"jar mill" meaning in English

{
  "forms": [
    {
      "form": "jar mills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jar mill (plural jar mills)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2004, American Society for Testing & Materials, Glass - Ceramic Whitewares, page 73",
          "text": "Either a special steel mortar or a special steel jar mill may be used as alternative means of preparing a crushed sample of glass.",
          "type": "quotation"
        },
        {
          "ref": "2013, F. Singer, Industrial Ceramics, page 671",
          "text": "For laboratory use and for grinding colours and enamels porcelain pot or jar mills are used.",
          "type": "quotation"
        },
        {
          "ref": "2017, J Gubicza, Defect Structure and Properties of Nanomaterials",
          "text": "The jar mills are low-energy mills, although they can provide higher energy milling if sufficiently large diameter in order of meters and many balls are used.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A small ball mill with a jar-like drum."
      ],
      "id": "en-jar_mill-en-noun-XLhvuj~V",
      "links": [
        [
          "ball mill",
          "ball mill"
        ],
        [
          "drum",
          "drum"
        ]
      ]
    }
  ],
  "word": "jar mill"
}

{
  "forms": [
    {
      "form": "jar mills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jar mill (plural jar mills)",
      "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",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2004, American Society for Testing & Materials, Glass - Ceramic Whitewares, page 73",
          "text": "Either a special steel mortar or a special steel jar mill may be used as alternative means of preparing a crushed sample of glass.",
          "type": "quotation"
        },
        {
          "ref": "2013, F. Singer, Industrial Ceramics, page 671",
          "text": "For laboratory use and for grinding colours and enamels porcelain pot or jar mills are used.",
          "type": "quotation"
        },
        {
          "ref": "2017, J Gubicza, Defect Structure and Properties of Nanomaterials",
          "text": "The jar mills are low-energy mills, although they can provide higher energy milling if sufficiently large diameter in order of meters and many balls are used.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A small ball mill with a jar-like drum."
      ],
      "links": [
        [
          "ball mill",
          "ball mill"
        ],
        [
          "drum",
          "drum"
        ]
      ]
    }
  ],
  "word": "jar mill"
}