You searched for: “ionospheric wave
ionospheric wave, sky wave
1. A radio signal transmitted into the sky and reflected back down to earth from the ionosphere.
2. A radio wave that travels upward into space and may or may not be returned to earth by reflection from the ionosphere.
3. A radio wave that is transmitted around the curved surface of the earth by being reflected back to earth by the ionosphere.
This entry is located in the following units: ion, ion- + (page 9) sphero-, spher-, -sphere- (page 9)