"nuée ardente" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "nuée ardente"
      },
      "expansion": "French nuée ardente",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from French nuée ardente.",
  "forms": [
    {
      "form": "nuées ardentes",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "nuée ardentes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "nuées ardentes",
        "2": "s",
        "nolinkhead": "1"
      },
      "expansion": "nuée ardente (plural nuées ardentes or nuée ardentes)",
      "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"
        }
      ],
      "glosses": [
        "A pyroclastic flow."
      ],
      "id": "en-nuée_ardente-en-noun-6MKIdxVq",
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "pyroclastic flow",
          "pyroclastic flow"
        ]
      ],
      "raw_glosses": [
        "(geology) A pyroclastic flow."
      ],
      "synonyms": [
        {
          "word": "Peléan cloud"
        }
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "word": "nuée ardente"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "nuée ardente"
      },
      "expansion": "French nuée ardente",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from French nuée ardente.",
  "forms": [
    {
      "form": "nuées ardentes",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "nuée ardentes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "nuées ardentes",
        "2": "s",
        "nolinkhead": "1"
      },
      "expansion": "nuée ardente (plural nuées ardentes or nuée ardentes)",
      "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 borrowed from French",
        "English terms derived from French",
        "English terms spelled with É",
        "English terms spelled with ◌́",
        "en:Geology"
      ],
      "glosses": [
        "A pyroclastic flow."
      ],
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "pyroclastic flow",
          "pyroclastic flow"
        ]
      ],
      "raw_glosses": [
        "(geology) A pyroclastic flow."
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Peléan cloud"
    }
  ],
  "word": "nuée ardente"
}