- ionosphere, the
- i|on|o|sphere, the [ aı`anə,sfır ] nounthe part of the Earth's atmosphere through which radio waves can be sent
Usage of the words and phrases in modern English. 2013.
ionosphere, the
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Ionosphere — The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner … Wikipedia
(the) ionosphere — the ionosphere UK [aɪˈɒnəˌsfɪə(r)] US [aɪˈɑnəˌsfɪr] noun the part of the Earth’s atmosphere through which radio waves can be sent http://www.macmillandictionary.com/med2cd/weblinks/ionosphere the.htm Thesaurus: earth s atmospherehyponym… … Useful english dictionary
ionosphere and magnetosphere — ▪ atmospheric science Introduction regions of Earth s (Earth) atmosphere in which the number of electrically charged particles ions (ion) and electrons (electron) are large enough to affect the propagation of radio waves (electromagnetic… … Universalium
ionosphere — i|on|o|sphere [aıˈɔnəsfıə US aıˈa:nəsfır] n [Date: 1900 2000; Origin: ion + sphere (as in atmosphere)] the ionosphere the part of the ↑atmosphere which is used to help send radio waves around the Earth … Dictionary of contemporary English
ionosphere — noun the ionosphere the part of the atmosphere (1) which is used to help send radio waves around the Earth … Longman dictionary of contemporary English
Ionosphere — Ionosphère L’ionosphère est une région de l atmosphère terrestre située entre la mésosphère et la magnétosphère, c est à dire entre 60 et 800 km d altitude. Elle est constituée de gaz fortement ionisé (=plasma) à très faible pression (entre 2×10… … Wikipédia en Français
ionosphere — n. the outer region of the earth s atmosphere, beyond which is the {exosphere}; it contains a high concentration of free electrons and ions, and extends from about 50 miles to about 250 miles above the earth s surface, but the height shows daily… … The Collaborative International Dictionary of English
ionosphere — The region of the atmosphere, extending from approximately 30 to 250 miles (50 to 400 km), in which there is appreciable ionization. The ionized layers in the atmosphere reflect radio waves, making long wave communications possible over the… … Aviation dictionary
The European Radio Astronomy Club — (ERAC) is Europe s only group coordinating the work of radio astronomers to jointly use radio waves to study the universe at radio wavelengths. It was founded in 1995 by Peter Wright and his wife, Angelika, who had the idea of writing a small… … Wikipedia
ionosphere — [ī än′ə sfir΄] n. [< ION + O + SPHERE] the outer part of the earth s atmosphere, beginning at an altitude of c. 55 km ( c. 34 mi) and extending to the highest parts of the atmosphere: it contains several regions that consist of a series of… … English World dictionary
