Definition of “the stratosphere” - English Dictionary

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“the stratosphere” in British English

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the stratospherenoun [ S ]

uk /ˈstræt.ə.sfɪər/ us /ˈstræt̬.ə.sfɪr/ specialized

the layer of gases surrounding the earth at a height of between 15 and 50 kilometres that is not affected by the weather and in which the temperature increases with height:

During the 1980s, the amount of ozone in the stratosphere above Europe decreased by about eight percent.

(Definition of “the stratosphere” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“stratosphere” in American English

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stratospherenoun [ U ]

us /ˈstræt̬·əˌsfɪər/

earth science the layer of gases that surrounds the earth from about seven to 30 miles above it

(Definition of “stratosphere” from the Cambridge Academic Content Dictionary © Cambridge University Press)