![e region e region](https://www.tekportal.net/wp-content/uploads/2019/02/e-region-5699.jpg)
noun
- the region of the ionosphere in which the E layer forms.
noun
- a region of the ionosphere, extending from a height of 90 to about 150 kilometres. It reflects radio waves of medium wavelengthAlso called: Heaviside layer, Kennelly-Heaviside layer See also ionosphere
- 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.