radio wave
noun Electricity.
an electromagnetic wave having a wavelength between 1 millimeter and 30,000 meters, or a frequency between 10 kilohertz and 300,000 megahertz.
Origin of radio wave
First recorded in 1915–20
Words nearby radio wave
radio station,
radio taxi,
radio telescope,
radio tube,
radio valve,
radio wave,
radio waves,
radio window,
radio-,
radio-collar,
radio-controlled
British Dictionary definitions for radio wave
radio wave
noun
an electromagnetic wave of radio frequency
Scientific definitions for radio wave
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.