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F region   /ɛf rˈidʒən/   Listen
F region

noun
1.
The highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission.  Synonyms: Appleton layer, F layer.






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Words linked to "F region" :   region, part, Appleton layer, ionosphere



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