the troposphere noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of the troposphere noun from the Oxford Advanced American Dictionary

the troposphere

noun

NAmE//ˈtroʊpəˌsfɪr//

, NAmE//ˈtrɑpəˌsfɪr//

[singular] (technology)

the lowest layer of the earth's atmosphere, between the surface of the earth and about 4-12 miles above the surface

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