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English definition of “the troposphere”

the troposphere

noun [S]     /ˈtrɒp.əs.fɪər/ US  /ˈtrɑː.pəs.fɪr/ specialized
the layer of gases surrounding the Earth from the surface up to a height of about ten kilometres → Compare the exosphere, the ionosphere, the mesosphere, the stratosphere, the thermosphereThe Earth and outer space - general words
(Definition of the troposphere noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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