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nuée ardente

American  
[ny-ey ar-dahnt] / nü eɪ arˈdɑ̃t /

noun

Geology.

PLURAL

nuées ardentes
  1. (in a volcanic eruption) a swiftly flowing, dense cloud of hot gases, ashes, and lava fragments.


nuée ardente British  
/ ˈnyeɪ ɑːˈdɑ̃t /

noun

  1. a rapidly moving turbulent incandescent cloud of gas, ash, and rock fragments flowing close to the ground after violent ejection from a volcano See also ignimbrite

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

nuée ardente Scientific  
/ no̅o̅-āăr-dänt /

PLURAL

nuées ardentes
  1. A fast moving gaseous cloud of hot ashes and other material thrown out from an erupting volcano. Nuées ardentes are often incandescent.


Etymology

Origin of nuée ardente

1900–05; < French: literally, burning cloud

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Watching it, realizing it would plow right through the river valley between them and the mountain, Catherine thought of two words: “nuée ardente,” glowing cloud.

From Scientific American

So we fled… Nuee ardente from west, Mount St. Helens.

From Scientific American

“Nuée ardente” immediately came to mind as it became obvious nothing would stop it – not even the deep river valley that lay between us and the mountain.

From Scientific American

A “nueé ardente”, today referred as pyroclastic density current, is a mixture of volcanic particles and hot gases that flows according to its density over long distances.

From Scientific American