electromagnetic radiation

noun

: energy in the form of electromagnetic waves
also : a series of electromagnetic waves

Examples of electromagnetic radiation in a Sentence

Recent Examples on the Web The study used a new technology, an imaging spectrometer, which measures electromagnetic radiation to detect and measure processes in the Earth’s atmosphere, to collect data on methane emissions from 20% of the country’s largest landfills. Sunny Nagpaul, Fortune, 22 May 2024 But cameras were also trained on the storm from space, capturing phantasmal monochromatic shots from the sun's electromagnetic radiation. Stephen Swanson, CBS News, 14 May 2024 By releasing solar particles and electromagnetic radiation toward our planet, the coronal mass ejections are what drive the geometric storms toward Earth. Eric Lagatta, USA TODAY, 10 May 2024 How big are solar flares Solar flares are giant explosions of electromagnetic radiation that emit light, energy and high-speed particles. Eric Lagatta, USA TODAY, 9 Apr. 2024 Gamma rays are weightless, high-energy packets of electromagnetic radiation — the same stuff that makes up light. Max Bennett, Discover Magazine, 18 Mar. 2024 Alpha particles are just the nuclei of helium atoms, beta particles are electrons, and gamma rays are a type of very high-frequency electromagnetic radiation. Rhett Allain, WIRED, 23 Feb. 2024 Most other electromagnetic radiation won’t travel through Earth’s atmosphere. IEEE Spectrum, 2 Oct. 2023 No light can illuminate it because of its inability to have significant interactions with any kind of electromagnetic radiation. Elizabeth Rayne, Ars Technica, 19 Dec. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'electromagnetic radiation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1891, in the meaning defined above

Time Traveler
The first known use of electromagnetic radiation was in 1891

Dictionary Entries Near electromagnetic radiation

Cite this Entry

“Electromagnetic radiation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electromagnetic%20radiation. Accessed 6 Jun. 2024.

Kids Definition

electromagnetic radiation

noun
: energy in the form of electromagnetic waves
also : a series of electromagnetic waves

Medical Definition

electromagnetic radiation

noun
: a series of electromagnetic waves

More from Merriam-Webster on electromagnetic radiation

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