成せい層そう圏けん

せ

い

そ

う

け

ん

Common wordFreq.FrequencyTop 50,000

Meanings

1

noun

stratosphere

The atmospheric layer above the troposphere, extending from about 10–50 km altitude. Used in scientific, meteorological, and general contexts.

成せい層そう圏けんにはオゾン層そうがある。
The ozone layer is in the stratosphere.
気き球きゅうが成せい層そう圏けんまで上じょう昇しょうした。
The balloon ascended into the stratosphere.

Kanji

成turn into, become, get
層stratum, social class, layer
圏sphere, circle, radius

Similar words

対たい流りゅう圏けん
The troposphere, the atmospheric layer below the stratosphere where weather occurs.
中ちゅう間かん圏けん
The mesosphere, the layer above the stratosphere.

Etymology

Compound of 成層 (seisō, 'stratification') and 圏 (ken, 'sphere, zone'). The term was coined in the early 20th century as a calque of the English 'stratosphere'.