pillaring

uncountable

(meteorology) Rapid rising of smoke clouds due to heat generated by burning munitions and/or existing convection currents.

Japanese Meaning

（気象）燃焼によって発生した高温の空気や既存の対流により、迅速に上昇する煙雲の現象

Soldiers watched the pillaring of smoke above the exploded ammunition dump, a grim sign that munitions were still burning.

兵士たちは、爆発した弾薬庫の上空で煙が柱状に急速に立ち上るのを見て、それが弾薬がまだ燃えている厳しい兆候だと感じた。

Sense（1）

(meteorology) Rapid rising of smoke clouds due to heat generated by burning munitions and/or existing convection currents.