F2 layer

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noun \ˈef-ˈtü-\

Definition of F2 layer

  1. :  the upper of the two layers into which the F region of the ionosphere splits in the daytime at varying heights from about 120 miles (200 kilometers) to more than 300 miles (500 kilometers) above the earth

1933

First Known Use of f2 layer

1933


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WORD OF THE DAY

to cast off or become cast off

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