radio wave


Definition of radio wave 

: an electromagnetic wave with radio frequency

Examples of radio wave in a Sentence

Recent Examples on the Web

Other observatories saw flares of X-rays, radio waves and visible light. Author: Sarah Kaplan, Anchorage Daily News, "In a cosmic first, scientists detect ‘ghost particles’ from a distant galaxy," 12 July 2018 Other observatories saw flares of X-rays, radio waves and visible light. Sarah Kaplan,, "In a cosmic first, scientists detect 'ghost particles' from a distant galaxy," 12 July 2018 After the pleasure and play is done, all that will remain are radio waves, and an eternal Johnny Cash striding through a disco at Armageddon. Jonathan Bradley, Billboard, "Dream Up the World You're Gonna Live In: How U2's 'Zooropa' Got the Future Wrong, 25 Years Later," 5 July 2018 The detection also triggered a powerful example of another new trend, multimessenger astronomy, in which telescopes and other instruments studied the flaring blazar in all parts of the electromagnetic spectrum, from gamma rays to radio waves. Daniel Clery, Science | AAAS, "Ghostly particle caught in polar ice ushers in new way to look at the universe," 12 July 2018 Quasars emit mostly radio waves, which have the longest wavelengths in the electromagnetic spectrum, much longer than those of visible light. Fox News, "Superbright quasar could shed light on universe's youth," 10 July 2018 While some hospitals have moved to secure, encrypted pager systems, others are still sending information over open radio waves that could include a patient's name, date of birth and medical diagnosis. Andy Marso And Kelsey Ryan, kansascity, "Does your hospital still use pagers? Your personal information may be at risk," 22 June 2018 Instead of using electromagnetic radiation to produce imagery, the researchers have found a way to use low-power radio waves to track the movement and figure of humans through a wall. Liz Stinson, Curbed, "MIT just invented X-ray vision—sort of," 15 June 2018 These cataclysmic stellar explosions are particularly bright in visible light and in x-rays—except in Arp 299’s murky center most of that light would be absorbed by dust and reradiated in the infrared; the remnant would then leak out as radio waves. Lee Billings, Scientific American, "Giant Black Hole Swallows a Star and Belches Out a Superfast Particle Jet," 14 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radio wave.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of radio wave

1915, in the meaning defined above

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Last Updated

9 Sep 2018

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Time Traveler for radio wave

The first known use of radio wave was in 1915

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More Definitions for radio wave

radio wave


English Language Learners Definition of radio wave

: an electromagnetic wave that is used for sending signals through the air without using wires

radio wave


Kids Definition of radio wave

: an electromagnetic wave used in radio, television, or radar communication

radio wave

ra·dio wave | \ˈrād-ē-ō-ˌwāv \

Medical Definition of radio wave 

: an electromagnetic wave with radio frequency

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