radio wave

radio wave

n.

An electromagnetic wave within the range of radio frequencies.

---

radio wave

A very low frequency electromagnetic wave (from roughly 30 kilohertz to 100 gigahertz). Radio waves are used for the transmission of radio and television signals; the microwaves used in radar and microwave ovens are also radio waves. Many celestial objects, such as pulsars, emit radio waves. See more at electromagnetic spectrum.

Thesaurus

Noun

1.

radio wave - an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m radio emission, radio radiation electromagnetic radiation, electromagnetic wave, nonparticulate radiation - radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge sky wave - 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 ground wave - a radio wave propagated on or near the earth's surface radio signal - a radio wave used to transmit and receive messages radio spectrum, radio-frequency spectrum - the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television carrier wave, carrier - a radio wave that can be modulated in order to transmit a signal short wave - a radio wave with a wavelength less than 100 meters (a frequency greater than 3 megahertz) medium wave - a radio wave with a wavelength between 100 and 1000 meters (a frequency between 300 kilohertz and 3000 kilohertz) long wave - a radio wave with a wavelength longer than a kilometer (a frequency below 300 kilohertz)