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 By using an oscilloscope to measure the electromagnetic radiation while the token is authenticating itself, the researchers can detect tiny execution time differences that reveal a token’s ephemeral ECDSA key, also known as a nonce. Dan Goodin, Ars Technica, 3 Sep. 2024 In the antenna-testing room, 40,000 foam spikes on the wall absorb all noise and electromagnetic waves from satellites, while the room acts as a Faraday cage to block incoming electromagnetic radiation. Jonathan O’Callaghan, WIRED, 14 Aug. 2024 Imaging tests or procedures that may be performed include: A chest X-ray uses electromagnetic radiation to provide two-dimensional (2D) images of structures within the chest. Colleen Doherty, Verywell Health, 11 July 2024 Both solar flares, which are sudden eruptions of electromagnetic radiation from the Sun, and coronal mass ejections, which are expulsions of a large amount of matter and magnetic fields from the Sun, can produce energetic particles. Lulu Zhao, Discover Magazine, 19 June 2024 See all Example Sentences for electromagnetic radiation 

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 12 Sep. 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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