HyperDicEnglishF ... F region

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Related WikiPedia: F region
English 1 sense of the expression F region:
NOUNlocationF region, Appleton layer, F layerthe 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
EnglishF region: 1 sense noun 1, location
MeaningThe 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.
SynonymsAppleton layer, F layer
Instance ofregion, partThe extended spatial location of something
Part ofionosphereThe outer region of the Earth's atmosphere

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