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Definition of stratosphere noun from the Oxford Advanced American Dictionary

 

stratosphere

 noun
noun
NAmE//ˈstræt̮əˌsfɪr//
 
the stratosphere [singular]
 
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  • the layer of the earth's atmosphere between about 6 and 31 miles above the surface of the earth compare ionosphere
    • Idioms
    in/into the stratosphere
     
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    at or to an extremely high level The technology boom sent share prices into the stratosphere.
    stratospheric
     
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    NAmE//ˌstræt̮əˈsfɪrɪk//
     
    , NAmE//ˌstræt̮əˈsfɛrɪk//
     
    adjective stratospheric clouds    See stratosphere in the Oxford Advanced Learner's Dictionary
    Check pronunciation: stratosphere

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