from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An electromagnetic wave with a wavelength of approximately 200 meters or less, especially a radio wave in the 20 to 200 meter range.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Alternative spelling of shortwave.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a radio wave with a wavelength less than 100 meters (a frequency greater than 3 megahertz)


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