radiant energy

noun

: energy traveling as electromagnetic waves

Examples of radiant energy 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.
Infrared technology is a safe form of radiant energy, according to Richmond. — Talia McWright, Twin Cities, 10 Mar. 2025 The outward push of radiant energy from fusion at its core is what supports the star against the inward pull of its own gravity. — Phil Plait, Scientific American, 2 Aug. 2024

Word History

First Known Use

1870, in the meaning defined above

Time Traveler
The first known use of radiant energy was in 1870

Rhymes for radiant energy

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Browse Nearby Words

radiant
radiant energy
radiant flux
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Cite this Entry

“Radiant energy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiant%20energy. Accessed 27 Mar. 2025.

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Kids Definition

radiant energy

noun
: energy transmitted in the form of electromagnetic waves (as heat waves, light waves, radio waves, X-rays)

Medical Definition

radiant energy

noun
: energy traveling as electromagnetic waves

More from Merriam-Webster on radiant energy

Britannica.com: Encyclopedia article about radiant energy

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