E region

noun

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

E region

noun

1. Also called: Heaviside layer.  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 See also ionosphere

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 F region

Word History and Origins

Origin of E region¹

First recorded in 1935–40

Example Sentences

Fonacon's initial effort in 2005 drew 300 people to a small village in the coastal Vend�e region, using what has become the group's winning formula: free oysters and drinks for all comers who preregister, and an evening of tearing up agendas, smashing clocks and otherwise attacking symbols of time.

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The scion of a posh family whose blueblood ancestors once lorded over parts of his native Vend�e region in western France, the chateau-owning de Villiers initially attracted more pragmatic royalists and upper-class rightists than he did hardened reactionies.

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On the 14th the Germans were again engaged in serious operations in the La Bass�e region, where they exploded seven mines on the British front.

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Activities along the extended front in the Champagne district having proved successful for the German forces to a considerable extent, the General Staff turned its attention now to the La Bass�e region.

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