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E region

noun

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

E region

noun

  1. a region of the ionosphere, extending from a height of 90 to about 150 kilometres. It reflects radio waves of medium wavelength Also calledHeaviside layerKennelly-Heaviside layer See also ionosphere
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

E region

  1. 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.
  2. Also called E layer Heaviside layer
  3. Compare D region
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Word History and Origins

Origin of E region1

First recorded in 1935–40

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Erector Set-erel

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