sky wave 1
noundomain: natural phenomenon
Princeton WordNet [ver.3.1]
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EnglishDefinition
a radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface
Hypernym
radio wave 1
noun
an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
EnglishHyponym
a sky wave that is reflected by the ionosphere
