radio-wave

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:
1915–20

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World English Dictionary
radio wave
 
n
an electromagnetic wave of radio frequency

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
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.
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