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electromagnetic wave
noun
: 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
If possible, keep it away from other devices that use electromagnetic waves; that includes baby monitors, wireless keyboards, and microwaves.
2.
—Scott Gilbertson, WIRED, 1 Nov. 2024
The report highlights significant advancements in developing aerial, maritime, and ground drones, as well as electronic warfare systems, which disable or confuse enemy communications or weapons using various types of electromagnetic waves, from radio to radar to microwave.
—Katya Soldak, Forbes, 17 Oct. 2024
The reason is that when an electromagnetic wave encounters tiny particles in the atmosphere, some of it is scattered.
—Rhett Allain, WIRED, 11 Oct. 2024
In the near term, Russia aims to assemble international research teams of American, European, and Russian scientists to manage its Spektr-RG and Spektr-UV orbital observatories, which are scheduled for launch in 2017 and 2021 and will scan space for high-frequency electromagnetic waves.
—Pavel Luzin, Foreign Affairs, 21 Sep. 2016
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Word History
First Known Use
1882, in the meaning defined above
Time Traveler
The first known use of electromagnetic wave was
in 1882
Dictionary Entries Near electromagnetic wave
Cite this Entry
“Electromagnetic wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electromagnetic%20wave. Accessed 28 Nov. 2024.
Kids Definition
electromagnetic wave
noun
: a wave (as a radio wave, wave of visible light, or X-ray) that consists of an associated electric and magnetic effect and travels at the speed of light
Medical Definition
electromagnetic wave
noun
: 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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