熱ねつ雲うん

noun

glowing cloud; nuee ardente

Volcanology term for a hot, fast-moving cloud of gas and ash produced during a volcanic eruption. Also known as a pyroclastic density current.

• 熱ねつ雲うんは火か山ざん噴ふん火かの際さいに発はっ生せいする危き険けんな現げん象しょうだ。

  A glowing cloud is a dangerous phenomenon that occurs during volcanic eruptions.

• 1902年ねんのプレー山さん噴ふん火かでは、熱ねつ雲うんがサンピエール市しを壊かい滅めつさせた。

  In the 1902 eruption of Mount Pelée, a glowing cloud destroyed the city of Saint-Pierre.