electromagnetic wave

noun

Definition of electromagnetic wave 

: one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays

Examples of electromagnetic wave in a Sentence

Recent Examples on the Web

In the wall’s appliance-detection mode, the power is turned off, and the electrodes act as an antenna to passively pick up electromagnetic waves emitted by nearby devices. Prachi Patel, Scientific American, "How to Convert Your Wall into a Giant Touch Screen," 1 June 2018 Around the same time, Giuseppe Cocconi and Philip Morrison from Cornell University theorized that aliens would contact us via electromagnetic waves and over the frequency of 1420 MHz. Matt Blitz, Popular Mechanics, "We Can Explore Instead of Believe: Inside the Epic Hunt for E.T.," 30 Apr. 2018 The Miele Dialog oven is a full oven, not a countertop oven, that also holds the promise of precisely controlling the cooking process, through electromagnetic waves that are emitted at specific frequencies. Lauren Goode, WIRED, "Brava Hopes to Heat Up the 'Smart Kitchen' With a $995 Oven," 10 July 2018 Another researcher figured out how to take math that could describe electromagnetic waves and modify it to describe gravitational waves. John Timmer, Ars Technica, "Gravitational waves and the slow pace of scientific revolutions," 30 June 2018 If invisible electromagnetic waves traveling at the speed of light could bring Fibber McGee’s voice into your living room, perhaps spirit photography was possible as well. Mary Carole Mccauley, baltimoresun.com, "Behind the magic of Harry Houdini at the Jewish Museum of Maryland," 29 June 2018 Previous claims have linked electromagnetic waves and other environmental factors to the disease, but Greaves dismissed this link in his paper. Meera Senthilingam And Jessie Yeung, CNN, "A germ-free childhood could trigger leukemia, scientist suggests," 22 May 2018 Time crystals behave in strange ways when they’re hit with electromagnetic waves. Avery Thompson, Popular Mechanics, "Scientists Discover 'Time Crystals' Growing Right Under Their Noses," 4 May 2018 According to a press release, NASA and The University of Texas Institute for Geophysics (UTIG) collected the radar data by sending electromagnetic waves through the ice and then watching what bounced back. Julissa Treviño, Smithsonian, "Super Salty Lakes Found Deep Below Canadian Ice Cap," 16 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electromagnetic 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 electromagnetic wave

1882, in the meaning defined above

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Last Updated

24 Nov 2018

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Time Traveler for electromagnetic wave

The first known use of electromagnetic wave was in 1882

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More Definitions for electromagnetic wave

electromagnetic wave

noun

Kids Definition of <span class="syl">electromagnetic wave</span>

: a wave (as a radio wave or wave of light) that travels at the speed of light and consists of a combined electric and magnetic effect

electromagnetic wave

noun

Medical Definition of electromagnetic wave 

: one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays

More from Merriam-Webster on electromagnetic wave

Britannica.com: Encyclopedia article about electromagnetic wave

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