"boulder clay" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "boulder clay (uncountable)",
      "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": "Geology",
          "orig": "en:Geology",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1959 June, J. F. Oxley, D. R. Smith, “The Nottingham-Kettering line of the L.M.R.”, in Trains Illustrated, page 319",
          "text": "The geological formation here is boulder clay and lias, and the original intention to keep the railway in open cutting had to be abandoned, as this would have resulted in 90 ft. deep walls through unstable terrain.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A geological deposit of clay, often full of large stones and boulders, which is formed out of the ground moraine material of glaciers and ice-sheets."
      ],
      "id": "en-boulder_clay-en-noun--XSsSOBY",
      "links": [
        [
          "geology",
          "geology"
        ]
      ],
      "raw_glosses": [
        "(geology) A geological deposit of clay, often full of large stones and boulders, which is formed out of the ground moraine material of glaciers and ice-sheets."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "word": "boulder clay"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "boulder clay (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "en:Geology"
      ],
      "examples": [
        {
          "ref": "1959 June, J. F. Oxley, D. R. Smith, “The Nottingham-Kettering line of the L.M.R.”, in Trains Illustrated, page 319",
          "text": "The geological formation here is boulder clay and lias, and the original intention to keep the railway in open cutting had to be abandoned, as this would have resulted in 90 ft. deep walls through unstable terrain.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A geological deposit of clay, often full of large stones and boulders, which is formed out of the ground moraine material of glaciers and ice-sheets."
      ],
      "links": [
        [
          "geology",
          "geology"
        ]
      ],
      "raw_glosses": [
        "(geology) A geological deposit of clay, often full of large stones and boulders, which is formed out of the ground moraine material of glaciers and ice-sheets."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "word": "boulder clay"
}