shortwave

[shawrt-weyv]

noun

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.
Physics. a wave of electromagnetic radiation equal in length to, or shorter than, the wavelength of visible light.

adjective

of, relating to, or using shortwaves.

verb (used with or without object), short·waved, short·wav·ing.

to transmit by shortwaves.

Nearby words

  1. shortsighted,
  2. shortsightedly,
  3. shortsightedness,
  4. shortstop,
  5. shortwall,
  6. shortwave diathermy,
  7. shortwave radio,
  8. shortweight,
  9. shorty,
  10. shosholoza

Origin of shortwave

First recorded in 1900–05; short + wave

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for shortwave


Science definitions for shortwave

shortwave

[shôrtwāv]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.