also: なみじょううん
noun
undulatus; wave cloud
A meteorological term for a cloud formation with a wavy, undulating pattern. Used in weather reports and scientific contexts.
今日の空には美しい波状雲が広がっている。
Beautiful undulatus clouds are spreading across the sky today.
気象予報士が波状雲の発生に
The weather forecaster explained the formation of wave clouds.
Compound of 波状 (wave-shaped) and 雲 (cloud). The reading はじょううん uses the on'yomi for the first two characters, while なみじょううん mixes kun'yomi and on'yomi.