おぼろ雲ぐも

noun

altostratus cloud

A mid-level, grayish or bluish sheet-like cloud that often covers the whole sky. Compare with 高層雲 (こうそううん), the more technical term.

See also: 高層雲

• おぼろ雲ぐもが空そら一いち面めんに広ひろがって、月つきがかすんで見みえる。

  Altostratus clouds spread across the sky, making the moon look hazy.