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English definition of “the mesosphere”

the mesosphere

noun [S]     /ˈmes.əʊ.sfɪər/ US  /ˈmez.oʊ.sfɪr/ specialized
the layer of gases surrounding the Earth at a height of between 50 and 100 kilometres → Compare the exosphere, the ionosphere, the stratosphere, the thermosphere, the troposphereThe Earth and outer space - general words
(Definition of the mesosphere noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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