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nuée ardente
 nuée ardenteeruption of Mt. St. Helens,Skamania County, Washington August 7, 1980nu·ée ar·dente N5211600 (no͞o-ā′ ăr-däNt′)n. pl. nuées ardentes (no͞o-āz′ ăr-däNt′) A fast-moving cloudlike mass consisting of gases, hot ash, and other material ejected from an erupting volcano.
[French : nuée, large cloud, thundercloud (from nue, cloud, high clouds; see nuance) + ardente, feminine of ardent, burning (from Old French ardant; see ardent in Indo-European roots).]nuée ardente (ˈnyeɪ ɑːˈdɑ̃t) n (Geological Science) 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[C20: from French, literally: burning cloud]nuée ardente
nuée ardente[¦nü¦ā är′dänt] (geology) A turbulent, rapidly flowing, and sometimes incandescent gaseous cloud erupted from a volcano and containing ash and other pyroclastics in its lower part. Also known as glowing cloud; Pelean cloud. |