層そう積せき雲うん

そ

う

せ

き

う

ん

Meanings

1

noun

stratocumulus

A low, lumpy cloud layer; technical term used in weather forecasts and science.

積volume, product (x*y), acreage

雲cloud

積せき雲うん
積雲 is cumulus (individual puffy clouds), while 層積雲 is stratocumulus (a layer of lumpy clouds).
層そう雲うん
層雲 is stratus (a flat, featureless layer), while 層積雲 combines layered and lumpy characteristics.

Compound of 層 (layer), 積 (accumulate), and 雲 (cloud), directly translating the international cloud classification 'stratocumulus'.