"галт уул" meaning in Mongolian

{
  "forms": [
    {
      "form": "galt uul",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ᠭᠠᠯᠲᠤ ᠠᠭᠤᠯᠠ",
      "roman": "ɣaltu aɣula",
      "tags": [
        "Mongolian"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ᠭᠠᠯᠲᠤ ᠠᠭᠤᠯᠠ"
      },
      "expansion": "галт уул • (galt uul) (Mongolian spelling ᠭᠠᠯᠲᠤ\nᠠᠭᠤᠯᠠ (ɣaltu aɣula))",
      "name": "mn-noun"
    }
  ],
  "lang": "Mongolian",
  "lang_code": "mn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Mongolian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mongolian terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mn",
          "name": "Geology",
          "orig": "mn:Geology",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "volcano"
      ],
      "id": "en-галт_уул-mn-noun-BmEsKDI0",
      "links": [
        [
          "volcano",
          "volcano"
        ]
      ]
    }
  ],
  "word": "галт уул"
}

{
  "forms": [
    {
      "form": "galt uul",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ᠭᠠᠯᠲᠤ ᠠᠭᠤᠯᠠ",
      "roman": "ɣaltu aɣula",
      "tags": [
        "Mongolian"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ᠭᠠᠯᠲᠤ ᠠᠭᠤᠯᠠ"
      },
      "expansion": "галт уул • (galt uul) (Mongolian spelling ᠭᠠᠯᠲᠤ\nᠠᠭᠤᠯᠠ (ɣaltu aɣula))",
      "name": "mn-noun"
    }
  ],
  "lang": "Mongolian",
  "lang_code": "mn",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Mongolian entries with incorrect language header",
        "Mongolian lemmas",
        "Mongolian multiword terms",
        "Mongolian nouns",
        "Mongolian terms with redundant script codes",
        "mn:Geology"
      ],
      "glosses": [
        "volcano"
      ],
      "links": [
        [
          "volcano",
          "volcano"
        ]
      ]
    }
  ],
  "word": "галт уул"
}