- the ionosphere
- UK [aɪˈɒnəˌsfɪə(r)] / US [aɪˈɑnəˌsfɪr]
noun
the part of the Earth's atmosphere through which radio waves can be sent
English dictionary. 2014.
the ionosphere
Look at other dictionaries:
(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 — 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
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 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
Ionosphère — L ionosphère est l’atmosphère supérieure d’une planète, en référence à son état de conductibilité électrique qui est caractérisé par une ionisation partielle des gaz. L’ionosphère terrestre comprend trois régions neutres, à savoir la mésosphère,… … Wikipédia en Français
Ionosphere-Thermosphere Storm Probes — Infobox Spacecraft Name = Ionosphere Thermosphere Storm Probes Organization = NASA Mission Type = Two Earth orbiters investigating the ionosphere and thermosphere Number of Observatories = 2 Inclination = 60 degreesThe Ionosphere Thermosphere… … Wikipedia
ionosphere — ionospheric /uy on euh sfer ik/, adj. /uy on euh sfear /, n. the region of the earth s atmosphere between the stratosphere and the exosphere, consisting of several ionized layers and extending from about 50 to 250 mi. (80 to 400 km) above the… … 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
