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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
  • Warped radio waves may satisfy the ballooning demand for spectrum space.
  • They're much smaller because the wavelengths they interact with are much shorter than radio waves.
  • After all, the radio waves carrying the time signal must travel at the speed of light, regardless of the satellites' speed.
  • radio waves falling on a radio antenna create electric currents at different frequencies.
  • Microwaves are high freq radio waves, nothing to do with photons.
  • Different frequencies of radio waves could then put some of the atoms in superposition and flip the spins of others.
  • When the length of the antenna is changed by stretching it, however, the device responds to different frequencies of radio waves.
  • That's because radio waves do not travel well through water.
  • The signal strength at any point in a network is the sum of all the paths the radio waves can take to get to the receiver.
  • Prior to the first measurements of radio waves, nobody could prove their existence.
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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