HyperDic: ionosphere

English > 1 sense of the word ionosphere:
NOUNlocationionospherethe outer region of the Earth's atmosphere
ionosphere > pronunciation
Soundsayaa'nahsfiyr; ayyaa'nahsfiyr
Rhymesbier ... weir: 21 rhymes with iyr...
English > ionosphere: 1 sense > noun 1, location
MeaningThe outer region of the Earth's atmosphere; contains a high concentration of free electrons.
Part ofatmosphere, airThe mass of air surrounding the Earth
PartsAppleton layer, F layer, F regionThe highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission
D-layer, D regionThe lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves
Heaviside layer, Kennelly-Heaviside layer, E layer, E regionA region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length
Broaderregion, partThe extended spatial location of something
Spanishionosfera, Ionósfera

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