E region

noun

Definition of E region 

: the part of the ionosphere occurring between about 55 and 80 miles (90 and 130 kilometers) above the surface of the earth and containing the daytime E layer and the sporadic E layer

First Known Use of E region

1930, in the meaning defined above

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Dictionary Entries near E region

erection tower

Erector

erector

E region

Eregli

erelong

erem-

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The first known use of E region was in 1930

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