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thermosphere |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.01 sec. |
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thermosphere [′thər·mə‚sfir] (meteorology) The atmospheric shell extending from the top of the mesosphere to outer space; it is a region of more or less steadily increasing temperature with height, starting at 40 to 50 miles (70 to 80 kilometers); the thermosphere includes, therefore, the exosphere and most or all of the ionosphere. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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