- upper air
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Meteorol.the atmosphere above the lower portion of the troposphere. Cf. upper atmosphere.[1875-80]
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Universalium. 2010.
upper air
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upper atmosphere — Meteorol. the portion of the atmosphere above the troposphere. Cf. upper air. [1890 95] * * * upper atmosphere noun The region of the atmosphere above about 20 miles from the earth • • • Main Entry: ↑up * * * upper air or upper atmosphere, the… … Useful english dictionary
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