"roching cask" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "roche"
      },
      "expansion": "French roche",
      "name": "uder"
    }
  ],
  "etymology_text": "Probably from French roche a rock.",
  "forms": [
    {
      "form": "roching casks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "roching cask (plural roching casks)",
      "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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          "source": "w"
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          "name": "Pages with 1 entry",
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          "source": "w"
        },
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          "source": "w"
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      ],
      "glosses": [
        "A tank in which alum is crystallized from a solution."
      ],
      "id": "en-roching_cask-en-noun-XxePFznl",
      "links": [
        [
          "tank",
          "tank"
        ],
        [
          "alum",
          "alum"
        ],
        [
          "crystallize",
          "crystallize"
        ],
        [
          "solution",
          "solution"
        ]
      ]
    }
  ],
  "word": "roching cask"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "roche"
      },
      "expansion": "French roche",
      "name": "uder"
    }
  ],
  "etymology_text": "Probably from French roche a rock.",
  "forms": [
    {
      "form": "roching casks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "roching cask (plural roching casks)",
      "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",
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        "English undefined derivations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A tank in which alum is crystallized from a solution."
      ],
      "links": [
        [
          "tank",
          "tank"
        ],
        [
          "alum",
          "alum"
        ],
        [
          "crystallize",
          "crystallize"
        ],
        [
          "solution",
          "solution"
        ]
      ]
    }
  ],
  "word": "roching cask"
}