Meaning of APPLETON LAYER
Pronunciation: | | 'apultun 'leyur
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WordNet Dictionary |
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| Definition: | |
[n] the highest region of the ionosphere (from 90 to 600 miles up) that contains the highest concentration of free electrons and is most useful for long-range radio transmission |
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| Synonyms: | | F layer, F region |
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| See Also: | | ionosphere, part, region | |
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