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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
1915-20 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for radio waves
Contemporary Examples
Historical Examples
  • A ship on hyperdrive could log light-years an hour, but radio waves still had to travel 186,000 mps.

    Ministry of Disturbance Henry Beam Piper
  • I'll call you now and then, until the radio waves get lost, to check the course with you.

    Skylark Three Edward Elmer Smith
  • The wave lengths of these rays range from shorter than anything now used in broadcasting to the longest kind of radio waves.

    Autobiography of a YOGI Paramhansa Yogananda
  • The "grid" is connected to the aerial wire to intercept the radio waves.

  • But the spoken message had been too brief to get a fix on the direction of its radio waves.

    The Planet Strappers Raymond Zinke Gallun
  • What will happen, however, if someone locates the source of the radio waves?

    The Black Star Passes John W Campbell
  • The two radio waves impressed on us now will be out of step and the interference will instantly make us visible.

    The Black Star Passes John W Campbell
British Dictionary definitions for radio waves

radio wave

an electromagnetic wave of radio frequency
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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radio waves in Science
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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radio waves in Culture

radio waves definition

Waves at the end of the electromagnetic spectrum with the lowest frequency (less than 300 megahertz) and the longest wavelength (from a few feet to many miles). Because of their low frequency, radio waves carry very little energy compared to other electromagnetic waves. (See Planck's constant.)

Note: Radio waves can pass through the atmosphere and therefore are very useful for communication. Commercial, short-wave, and citizens' band radio are broadcast with radio waves, as is television.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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