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F region

From Wiktionary, the free dictionary

English

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Alternative forms

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Etymology

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(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Proper noun

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the F region

  1. The middle layer of the ionosphere, located 90 km (56 mi) to 150 km (93 mi) above the surface of the Earth.

Synonyms

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Further reading

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