e-region

E region

noun
the region of the ionosphere in which the E layer forms.

Origin:
1935–40

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To e-region
Collins
World English Dictionary
E region or E layer
 
n
See also ionosphere Heaviside layer, Also called: Kennelly-Heaviside layer a region of the ionosphere, extending from a height of 90 to about 150 kilometres. It reflects radio waves of medium wavelength
 
E layer or E layer
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
E region  
The region of the ionosphere that lies approximately 90 to 150 km (56 to 93 mi) above the Earth's surface. This region may affect long-distance communications because it influences radio waves in the 1-3 megahertz range. Also called E layer, Heaviside layer. Compare D region, F region.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature