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Meaning of APPLETON LAYER

Pronunciation:  'apultun 'leyur

 
WordNet Dictionary
 
 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
 
 Synonyms: F layer, F region
 
 See Also: ionosphere, part, region

 

 

 

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