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shortwave

[shawrt-weyv] /ˈʃɔrtˈweɪv/
noun
1.
Electricity. a radio wave, shorter than that used in AM broadcasting, corresponding to frequencies of over 1600 kilohertz: used for long-distance reception or transmission.
3.
Physics. a wave of electromagnetic radiation equal in length to, or shorter than, the wavelength of visible light.
adjective
4.
of, relating to, or using shortwaves.
verb (used with object), verb (used without object), shortwaved, shortwaving.
5.
to transmit by shortwaves.
Origin of shortwave
1900-1905
1900-05; short + wave
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for shortwave
Historical Examples
  • Radio Tirana is the largest, with four mediumwave transmitters and forty-one shortwave transmitters.

    Area Handbook for Albania Eugene K. Keefe
  • Whenever the shortwave radio blared, she listened attentively.

    Swamp Island Mildred A. Wirt
  • shortwave is used for domestic programs in cases where the mountainous topography creates an obstacle to the mediumwaves.

    Area Handbook for Albania Eugene K. Keefe
  • Radio Kukes and Radio Shkoder each have one mediumwave and one shortwave transmitter.

    Area Handbook for Albania Eugene K. Keefe
  • All but eight of the transmitters are shortwave, which is indicative of the emphasis placed upon transmitting propaganda abroad.

    Area Handbook for Albania Eugene K. Keefe
  • Much later, as they neared Riverview, Penny absently switched on the shortwave radio.

    Swamp Island Mildred A. Wirt
shortwave in Science
shortwave
  (shôrt'wāv')   
A radio wave with a frequency between 5.9 megahertz and 26.1 megahertz. Shortwaves broadcast from the Earth's surface are reflected by the upper atmosphere and can travel great distances around the planet. The shortwave band of the electromagnetic spectrum is used for amateur radio communications.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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