彩さい雲うん

noun

iridescent clouds; glowing clouds

Refers to clouds that display a rainbow-like or mother-of-pearl coloration, often seen near the sun or moon.

• 夕ゆう方がた、西にしの空そらに美うつくしい彩さい雲うんが現あらわれた。

  In the evening, beautiful iridescent clouds appeared in the western sky.