electromagnetic wave
nounDefinition 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
The changing electric and magnetic fields are an electromagnetic wave. — Rhett Allain, WIRED, "The Physics of Falling Magnets in Stranger Things Season 3," 9 Aug. 2019 Those sensors emit electromagnetic waves that pick up on motion, then translate it into data. — Wired, "Google's New Gesture Controls Aren't Just for the Pixel," 30 July 2019 Since freshwater is not as good of a conductor of electromagnetic waves as salt water, the freshwater stood out. — Doug Criss, CNN, "Scientists found a gigantic freshwater aquifer below the Atlantic. It has enough water to fill 1 billion Olympic swimming pools," 26 June 2019 Scientists used measurements of electromagnetic waves in order to map the water, which is trapped in porous sediments lying beneath the ocean. — Fox News, "Mysterious freshwater reservoir found hidden beneath the ocean," 24 June 2019 By measuring the way electromagnetic waves traveled through fresh and saline water, researchers mapped out fresh-water reservoirs for the first time. — Michael J. Coren, Quartz, "Scientists have discovered a sea of fresh water under the ocean," 22 June 2019 Light is describable as an electromagnetic wave and as a particle, a photon. — Peter Byrne, Quanta Magazine, "A Bold Critic of the Big Bang’s ‘Smoking Gun’," 3 July 2014 The scientific instrument known as the Dreamcatcher emits electromagnetic waves that penetrate the sheets of ice below. — Daniela Hernandez, WSJ, "Climate’s Big Unknown: What’s Happening Beneath Antarctica’s Ice?," 29 Dec. 2018 No obviously artificial electromagnetic waves, and so forth. — Rob Reid, Ars Technica, "Ars on your lunch break, week 4: Fermi’s Paradox and the empty universe," 10 July 2018These 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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