E region

noun

Definition of E region

  1. :  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

1930

First Known Use of e region

1930


Learn More about e region


Seen and Heard

What made you want to look up E region? Please tell us where you read or heard it (including the quote, if possible).