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Meaning of radio wave

ra'dio wave"

Pronunciation: [key]
— Elect. Elect.
  1. an electromagnetic wave having a wavelength between 1 millimeter and 30,000 meters, or a frequency between 10 kilohertz and 300,000 megahertz.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.