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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Solare flares are powerful bursts of electromagnetic radiation that travel at light speed and take only eight minutes to reach Earth, often disrupting some radio communications and satellites. Jamie Carter, Forbes, 4 Oct. 2024 Forecasters use a five-level scale to measure geometric storms, which are caused when coronal mass ejections release solar particles and electromagnetic radiation toward our planet. Eric Lagatta, USA TODAY, 10 Oct. 2024 While the first generation of Starlink satellites emits radio waves that can hinder astronomical observations, say the researchers, the new ‘V2-mini’ Starlink satellites emit far more unintended electromagnetic radiation (UEMR). Jamie Carter, Forbes, 4 Oct. 2024 Returning to physics basics, photons are tiny packets of light representing the entire spectrum of electromagnetic radiation. New Atlas, 26 Sep. 2024 See all Example Sentences for electromagnetic radiation 

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 22 Nov. 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

Last Updated: - Updated example sentences
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