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sky wave

noun Radio.

a radio wave propagated upward from earth, whether reflected by the ionosphere or not.

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Nearby words

sky marker, sky marshal, sky pilot, sky show, sky train, sky wave, sky's the limit, the, sky-blue, sky-blue pink, sky-high, skyboard

Origin of sky wave

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for sky wave

sky wave

noun

a radio wave reflected back to the earth by the ionosphere (ionospheric wave), permitting transmission around the curved surface of the earthCompare ground wave
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012