"radio wave." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/radio-wave>.
radio wave. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/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.